I love seeing thoughtful gifts like this. Paul really lifted the spirits of not only street tips and the channel. It lifts our spirits as the viewers of the content. It's generosity like this seen here that makes me think there is hope for the world.
That's not too bad of a yield for just refining some filter papers, considering you're also going to get silver and PGMs as well. Who am I kidding, that's a damn good yield for this type of refining. Nice job!
Thanks Paul. I love watching the filter refining videos. So interesting to work your way through the elements to retrieve them. You didn't want to do the Oxalic Acid Solution treatment for the 2nd drop? I don't blame you... Fun stuff
Very nice device Mr Steetips. Wow, what a fantastic contribution from Paul. So many years I follow you, you always mentioned the GRForum and several senior guys there like Butcher. In my case, I mention you as my grand master. After time watching plus 2 years I started with the hobby, more or less 1 year studying and some prentice level practice, and now one more year of hands on, I consider myself relatively successful. With Silver I am about to graduate, have got myself a nice 4 Oz collection (unfortunately I dont know where to find silver anymore, the plated I user to get a lot got price out of control). What I am most proud of is to have mastered a handful of different processes for gold for different scenarios. I learned to estimate, sort, process, recover and refine. My measure of success is that huge amount of ewaste that actually yields a couple of grams, and I am doing that. Sensation like no other: you have that considerable volume of junk, you understand you have like 2-3 grams of gold there, and successfully drop 3 grams at the end. I am about to melt my beads together to make my very own bar. Thank you for all learning opportunity you provided!
I seen a dead palmetto bug dissolve completely in piranha solution. No traces left of the bug - solution stayed clear and colorless. Made a believer out of me.
I'm just watching this a year later and chuckling about you burning the plastic bags. I have friends that completely spaz out whenever they see me burn plastic. Too Funny.
I think this may be your best overall video just showing how much you have to decide on the fly as you discover bit by bit what all metals you've got in concentration. It's a great demonstration of the knowledge and effort it takes to refine precious metals as well as just how much you can lose to filters in all your other refining projects. I wonder how many people would've just thrown those filters away and lost multiple grams of gold.
No need to give instructions watch enough videos and you start to understand how this works and also the dangers along with it, no way this is for some one who need instructions how to do this it is way to dangerous!!! Respect to this man who is making the videos for us to watch
I have been waiting to see you refine your filters and here I sit on this beautiful Saturday afternoon on the beautiful st, johns river with my best friend Lugnut {my dog} chillaxing and watching this much anticipated video
chatGPT told me that you should do selective for platinum first by using Ammonium chloride then filtering it for platinum afterthat you will go after Palladium by using dimethylglyoxime and then fillter out any solid in the solution. (you should get palladium dimethylglyoxime) lastly you should filter it for gold by using sodium metabisulfite the reason is sodium metabisulfite is not very good at selective precipitation, therefore we must reduce other first
He only refines the metal to liberate the beaker. Hilarious. Truly "pound smart and penny foolish". He doesn't waste anything, his wife finds all the good deals and he is a truly knowledgeable chemist. It would break my heart if the beaker burst on the high heat after three years of inactivity.
Good one, it’s nice to see things not go 100% to plan and how to work around them. Amazing result for filers, I would have like to see how much Silver you recovered. Thanks for sharing
Holy makeral, this man is burning plasic bags on a fire, someone call greta! This is fantastic wake and bake watching with my morning coffee, regards from Wales UK ♥
Watching you pipette the water out before you tried to melt was soothing for my anxiety lol I was like please get some of that excess water out first so it don’t splatter ha ha
Wow when I saw the footage of you incinerating all the filters together I knew it would be a interesting one. I keep each type of process filter separate from each other, makes it easier to recover the metals
@@sreetips I work with "Ewaste" and gold plated mostly, so there are a heck of a lot of filters from the various processes for each type of parts I run.
I'm wondering if a Dutch oven with a lid might reduce the possibility of metal dust carried away in the expanding combustion gasses. The method I have in mind is similar to making charcoal.
Paul Ashman... You rock! 🤘💥🤘 Sreetips... I think you may have 1/4 - 1/2 troy ounce of powdered gold precipitate in that big flask. It has contamination now, though, but could provide some more content when you get to it. I love the long video. Luckily, I already had snacks and drinks on hand. 😁
Paul Ashman - you made sreetips happy, but you made us all happy because he deserves some quality lab gear for his excellent content.. That's a very nice addition!
Hello sreetips 👋 love your videos When incinerating for example IC-chips, it’s important to burn all the carbon out of the material. Basically burning it until it’s white. Otherwise the (black) carbon will trap some of the gold in the recovery state. I wonder if it’s the same with the filter papers? 🤔
Tin will cement palladium and use copper to silver next easier way less filter paper and time but everyone does it different I guess and if you need heat use sulfuric and hydrochloric don't need not hot plates but every one does it diffrent
Remove each metal in solution one at a time. First silver make silver chloride filter the solution off then add smb to solution drop the gold.. filter it off then add whatever chemicals you put in to drop platinum and palladium.
You should send Paul a small bar of silver from your silver refinery to say thanks for the hot plate/stirring plate. 💙 your videos there very interesting and I learn alot from your vids, keep thm coming and ill keep watching thm 👌👍💯🔥
There will be losses. Losses occur all along the way. Drops splashing out, vapors going up the stack, particles sticking to filters, and on and on. With a hobby set up like mine these types of losses are going to happen. Minimizing them will depend on my technique and skill as a refiner.
Hi from Australia 👋, question, When refining silver plate, how do you know when solution is saturated with metals? ie- knowing when to add more water ? Thanks 👍 ps- I’ve learned so much from your vid’s 🙏
Agree, but I had to get that one off my shelf. Every time I looked at it a felt a knot in my stomach. You’ll see my picture under the word “procrastination” in the dictionary.
Yeah bring gold down first then filter then amonium for platium palladium with sodium hydroxide mix with smb get the platinum metals out and get distilled water and wash gold not hydrochloric cause it's laced with nitro it go back to solution you will be redoing redoing over and over same hope I helped you out 🤜🤛
@@sreetips But will it vaporise at that temperature? From an open fire? I get it with the oxyacetylene torch, that you can book away most precious metals (not sure about osmium), but from a wood-fired "natural" incineration you should, at most, just burn off any combustible material, right?
Mr. Sreetips, I was wondering what book you keep referencing that guides you in your refining, and where you got your glassware from. I'm wanting to start refining for myself as a hobby.
Good morning sir! I have two questions this morning: 1. What about gold foils in the sieve from gold-plated silver jewelry? These foils would get stuck in the sieve, am I wrong? 2. Some filters probably contain dried silver-nitrate, right? What happens to that in the incineration process? It won't react further right? Went to a fleamarket yesterday to get some carat scrap and some sterling scrap! Best greetings from a fan from Germany!
I saved the large pieces with some similar material for later processing. The video was approaching an hour in length so I cut some corners to save time. I rinse the filters as best as I can before adding to paper storage. But some of the silver nitrate is probably still present. Not sure how it reacts to incineration. Here’s a tip; 1) glue a tiny magnet on you jewelers loupe with expoxy. A magnet is a pickers best friend. 2) quietly, discretely, ask if the seller has any fine jewelry for sale. Sometimes sellers are reluctant to display fine jewelry due to thieves. Same yard sales. Sometimes they’ll go in the house and bring out gold and put it in your hand. People are clueless about gold. Their faith in fiat fake paper money is absolute. This presents a wonderful opportunity for those who understand gold as real money, to pick it up for cents on the dollar. But this won’t last forever. Eventually people will begin to realize that fiat currency, whether paper or digital, is nearly worthless, then there will be a stampede into the metals. Hasn’t happened yet, but when it does it will do so quickly. Then we won’t find gold and silver like we can - right now.
@@sreetips I am 100% with you here. The market is getting drier and drier, but I can still find gold and silver anytime I go out. Gotta be early and gotta know the hallmarks etc. Always a good deal to make, I think it is similar here in Germany. Arab migrants know about metals, they are my competition out here when I am picking. But you are right, most people are clueless. This FIAT paper ponzi sheme will end in the near future and people will return to SOUND money. The metals age is coming: Canned food, Gold, Silver and Brass.
Hey Sreetips I love your videos! I recently heard a different refiner here on youtube say that Stannous Chloride only lasts about a month. Is that true? What happens to it. does it just not show gold anymore even if there is some or what happens to it if it becomes "no good" anymore?
That is one of the most unique buttons I have ever seen! If there something up with the lighting or does it look strangley glossy on the top in contrast to sides and bottom?
I noticed that. It’s not borax. Looks very unusual. I could probably get it to mirror by inquarting, parting with nitric then double refine using different precipitants. But the video was already approaching an hour in length.
@@sreetips I'm glad you didn't. I had to get to bed. Lol. I checked it out on ebay but it exceded my budget however, I did pick up on some silver crystal instead.
Is it possible to weigh the gold bearing liquid and compare it to the weight of water to get a rough idea of the amount of gold and other precious metals present in solution?
@@sreetips I have seen that one before but I’d forgotten about it. Started ~900g and the water was ~680g. The gold crystal was ~27.7g and there was some gold left in solution and some solids but I’m guessing less than the weight of the crystal. So that’s ~180g difference. Is that the difference in specific gravity of the acid vs water or what?
I love watching your videos I have learned a lot but I have a question after I filter my gold flakes from using muriatic acid process my flakes disappear am I destroying my gold?
I love seeing thoughtful gifts like this. Paul really lifted the spirits of not only street tips and the channel. It lifts our spirits as the viewers of the content. It's generosity like this seen here that makes me think there is hope for the world.
I'm constantly amazed at how much PMs will hide in the filters. Every time I do a batch of filters I am always left pleasantly surprised.
综上所述额3301喔102额日入口分3啊老婆2 6,^$!:$#/8*#
That's not too bad of a yield for just refining some filter papers, considering you're also going to get silver and PGMs as well. Who am I kidding, that's a damn good yield for this type of refining. Nice job!
Very cool Paul Ashman! Thanks on behalf of the subscriber community!
Love your work. Burning the plastic was a nice touch.
That’s sweet, most people would have thrown the filters out, who would have thought ! Sweeeeeeeeeeeet. Very nice of Paul to donate to you.
Thanks Paul. I love watching the filter refining videos. So interesting to work your way through the elements to retrieve them. You didn't want to do the Oxalic Acid Solution treatment for the 2nd drop? I don't blame you... Fun stuff
Very nice device Mr Steetips. Wow, what a fantastic contribution from Paul.
So many years I follow you, you always mentioned the GRForum and several senior guys there like Butcher.
In my case, I mention you as my grand master. After time watching plus 2 years I started with the hobby, more or less 1 year studying and some prentice level practice, and now one more year of hands on, I consider myself relatively successful.
With Silver I am about to graduate, have got myself a nice 4 Oz collection (unfortunately I dont know where to find silver anymore, the plated I user to get a lot got price out of control).
What I am most proud of is to have mastered a handful of different processes for gold for different scenarios. I learned to estimate, sort, process, recover and refine.
My measure of success is that huge amount of ewaste that actually yields a couple of grams, and I am doing that.
Sensation like no other: you have that considerable volume of junk, you understand you have like 2-3 grams of gold there, and successfully drop 3 grams at the end.
I am about to melt my beads together to make my very own bar.
Thank you for all learning opportunity you provided!
Excellent, thank you
51 Minutes long .. *Sits back in the chair.
Loved the test batch overflow. Chemistry is always exciting!
You could also try retrieving that with hot piranha solution, it dissolves almost everything organic including paper and plastic.
I seen a dead palmetto bug dissolve completely in piranha solution. No traces left of the bug - solution stayed clear and colorless. Made a believer out of me.
Wow your awesome Paul
I'm just watching this a year later and chuckling about you burning the plastic bags. I have friends that completely spaz out whenever they see me burn plastic. Too Funny.
They don’t know any better. Just let ‘em be.
I love these videos. Much better than learning from someone who knows too much
I think this may be your best overall video just showing how much you have to decide on the fly as you discover bit by bit what all metals you've got in concentration. It's a great demonstration of the knowledge and effort it takes to refine precious metals as well as just how much you can lose to filters in all your other refining projects. I wonder how many people would've just thrown those filters away and lost multiple grams of gold.
I guessed 7 grams and you got 6.3 grams. That's a good amount of gold in them filters. Awesome sreetips.
Thx Paul.Very nice of you.🔥👍
Great video!! And what a beautiful vintage Omega constellation!
What a great donation! Thanks Paul.
Great video 👍, nice button of gold just from your filters, fun to watch.
No need to give instructions watch enough videos and you start to understand how this works and also the dangers along with it, no way this is for some one who need instructions how to do this it is way to dangerous!!!
Respect to this man who is making the videos for us to watch
I have been waiting to see you refine your filters and here I sit on this beautiful Saturday afternoon on the beautiful st, johns river with my best friend Lugnut {my dog} chillaxing and watching this much anticipated video
chatGPT told me that you should do selective for platinum first by using Ammonium chloride then filtering it for platinum
afterthat you will go after Palladium by using dimethylglyoxime and then fillter out any solid in the solution. (you should get palladium dimethylglyoxime)
lastly you should filter it for gold by using sodium metabisulfite
the reason is sodium metabisulfite is not very good at selective precipitation, therefore we must reduce other first
He only refines the metal to liberate the beaker. Hilarious. Truly "pound smart and penny foolish". He doesn't waste anything, his wife finds all the good deals and he is a truly knowledgeable chemist. It would break my heart if the beaker burst on the high heat after three years of inactivity.
It’s good for the show
That right there is why I watch your channel I learn what is involved with doing this stuff thank you so much for sharing your knowledge two thumbs
Good one, it’s nice to see things not go 100% to plan and how to work around them. Amazing result for filers, I would have like to see how much Silver you recovered. Thanks for sharing
Holy makeral, this man is burning plasic bags on a fire, someone call greta!
This is fantastic wake and bake watching with my morning coffee, regards from Wales UK ♥
Great video - really like seeing what you could get out of your filter papers!
Watching you pipette the water out before you tried to melt was soothing for my anxiety lol I was like please get some of that excess water out first so it don’t splatter ha ha
You are always interesting to watch. Thanks for the content.
I've been looking forward to this one.
yay! these are always some of the best!
Oiling
Was waiting for that a long time. That huge sink makes me nervous everytime. How about a video about your biggest mishaps?
Wow when I saw the footage of you incinerating all the filters together I knew it would be a interesting one. I keep each type of process filter separate from each other, makes it easier to recover the metals
I’m too small of an operation. Most of my filters are from silver refining.
@@sreetips I work with "Ewaste" and gold plated mostly, so there are a heck of a lot of filters from the various processes for each type of parts I run.
I learned everything I know from watching your channel and I’ve made a lot of gold and silver thanks so much
Excellent, thank you
I'm wondering if a Dutch oven with a lid might reduce the possibility of metal dust carried away in the expanding combustion gasses. The method I have in mind is similar to making charcoal.
I need the air to get to it.
Paul Ashman... You rock! 🤘💥🤘
Sreetips... I think you may have 1/4 - 1/2 troy ounce of powdered gold precipitate in that big flask. It has contamination now, though, but could provide some more content when you get to it. I love the long video. Luckily, I already had snacks and drinks on hand. 😁
Hey Sreetips, do you also save the stannous test papers you use to refine eventually as well? Love the videos.
I usually throw them away. Stannous is tin. Probably should save them in a jar for later recovery though.
@@sreetips Hey thanks for answering! Never knew that it was tin, neat.
@@TMK-22 Several of the periodic symbols are derived from the older names for elements such as gold, silver, iron, tin, Just helpful to keep in mind.
This is the chemist equivalent of saving up all their roaches, breaking them open and rolling them into a big blunt 😆
Love your work . I learning so much here in Australia. It's keeping me sane with all these covid lock downs.
Paul Ashman - you made sreetips happy, but you made us all happy because he deserves some quality lab gear for his excellent content.. That's a very nice addition!
Thank you for your great videos. I am learning a lot watching you.
Solid move Paul Ashman
Look at all the different colors coming off of the filter paper burn. Cool
Not too bad for something you had just laying around for 3 years!
Have a Great Day My Friend!!
I could never do what you do I'm too scared of chems. But I can't stop watching hehe
@42:45 Was amazing! I love Sreetips reaction when the reaction hit!
This really makes me think that if you could go back 400 or 500 and watch alchemists at work this is exactly what you would see.
This is one of the best gifts I learned in a while
Cool little button you should keep it like it is. Thanks for the video
Give the man some soiled filters and he comes out smiling. Great video
This was very fun to watch.
41:00 Of course, Murphy has a hand in everything.
Hello sreetips 👋 love your videos
When incinerating for example IC-chips, it’s important to burn all the carbon out of the material.
Basically burning it until it’s white. Otherwise the (black) carbon will trap some of the gold in the recovery state.
I wonder if it’s the same with the filter papers? 🤔
Probably is.
Have you considered lye / sulfuric to dissolve the paper instead of fire? I would guess some loss from the turbulent flames and air flow
Amazing 🤩 thumbs up 👍 keep up the great work
Big up Paul Ashman
You can use same process in dust of polish from jewelry
If you were a gold prospector and found a nugget that size, you would be excited for a month! Maybe a full year.
*I did gold recovery too its* *was fun and awesome*
*btw nice work* 👍👍
Thank you
Thanks to sreetips and Paul for the donation.
I was really waiting for this one!
Tin will cement palladium and use copper to silver next easier way less filter paper and time but everyone does it different I guess and if you need heat use sulfuric and hydrochloric don't need not hot plates but every one does it diffrent
Remove each metal in solution one at a time. First silver make silver chloride filter the solution off then add smb to solution drop the gold.. filter it off then add whatever chemicals you put in to drop platinum and palladium.
in 1 of your videos you showed how to make a silver cell out of a desk top power supply which one was that sreetips
ruclips.net/video/QZYbejwFS4U/видео.html
Your stir bar kindly held on to the magnetics.
Just want to say Paul Ashman you a champ.
Damn thats a 400$ stir hotplate. Very nice subscriber!
You should send Paul a small bar of silver from your silver refinery to say thanks for the hot plate/stirring plate. 💙 your videos there very interesting and I learn alot from your vids, keep thm coming and ill keep watching thm 👌👍💯🔥
Looking at the flame changing color do you have a sense of how much precious metal(s) you may have lost when ashing?
There will be losses. Losses occur all along the way. Drops splashing out, vapors going up the stack, particles sticking to filters, and on and on. With a hobby set up like mine these types of losses are going to happen. Minimizing them will depend on my technique and skill as a refiner.
That's just some early, rough spectroscopy to see what's in there!
"Main contaminant probably palladium" One of those cases where the contamination would probably make it MORE valuable :D
Correct, palladium is a bout 100 times more valuable than silver
I low-key want that gold button!
it just gets better. 🇬🇧
Jeez you need a steady hand to cope with all those scary chemicals - so that's me out. I'm an accident waiting to happen !!!
A great thanks goes to sreetips for sharing this video with us. I love watching these kinds of videos 👍👍
Hi from Australia 👋, question,
When refining silver plate, how do you know when solution is saturated with metals?
ie- knowing when to add more water ?
Thanks 👍
ps- I’ve learned so much from your vid’s 🙏
Bradley, I have not figured out how to deplete silver from silver plated items yet. I’ve got a bin saved up. Just need some time to experiment.
btw, did you get the platinum out of your concrete?
almost an hour of Sreetips, yay!
Out of the ashes of old you should raise a phoenix
Osmium soluble as well in nitric
I’m not sure.
Always epic. Very nice button Sree 👌🏼👌🏼🤘🏼
Hey Sreetips, where do you think that blue flames from the 'filter paper' (2:16 - 2:46) bag come from? I'm assuming it's not just sulfur.
Chlorinated compounds i guess (like pvc), burning plastic in the open is a pretty bad idea.
Need an updated video Kevin...your current papers or your waste slimes! 2018 is so....old!
Agree, but I had to get that one off my shelf. Every time I looked at it a felt a knot in my stomach. You’ll see my picture under the word “procrastination” in the dictionary.
Yeah bring gold down first then filter then amonium for platium palladium with sodium hydroxide mix with smb get the platinum metals out and get distilled water and wash gold not hydrochloric cause it's laced with nitro it go back to solution you will be redoing redoing over and over same hope I helped you out 🤜🤛
Does a percent of the gold vaporize while you combust the filter papers?
If you get it too hot just about any metal will vaporize
@@sreetips But will it vaporise at that temperature? From an open fire? I get it with the oxyacetylene torch, that you can book away most precious metals (not sure about osmium), but from a wood-fired "natural" incineration you should, at most, just burn off any combustible material, right?
26:27 - 26:30 "There is no SOP"
I Refer to Sreetip channel for probably the best precious metals refining information.......🤪
What's going to catch the liquid if the beaker breaks on the heat wouldn't it be safer to have it in one of the CorningWare dishes
Yes
Holy Cow! Should have taken more than one year of Chemistry class!!!!!?😉
Mr. Sreetips, I was wondering what book you keep referencing that guides you in your refining, and where you got your glassware from. I'm wanting to start refining for myself as a hobby.
“Refining Precious Metal Wastes” by C.M. Hoke - available all over the internet as a free PDF download. I bought all my glassware on eBay.
@@sreetips thank you sir
Good morning sir!
I have two questions this morning:
1. What about gold foils in the sieve from gold-plated silver jewelry? These foils would get stuck in the sieve, am I wrong?
2. Some filters probably contain dried silver-nitrate, right? What happens to that in the incineration process? It won't react further right?
Went to a fleamarket yesterday to get some carat scrap and some sterling scrap!
Best greetings from a fan from Germany!
I saved the large pieces with some similar material for later processing. The video was approaching an hour in length so I cut some corners to save time. I rinse the filters as best as I can before adding to paper storage. But some of the silver nitrate is probably still present. Not sure how it reacts to incineration. Here’s a tip; 1) glue a tiny magnet on you jewelers loupe with expoxy. A magnet is a pickers best friend. 2) quietly, discretely, ask if the seller has any fine jewelry for sale. Sometimes sellers are reluctant to display fine jewelry due to thieves. Same yard sales. Sometimes they’ll go in the house and bring out gold and put it in your hand. People are clueless about gold. Their faith in fiat fake paper money is absolute. This presents a wonderful opportunity for those who understand gold as real money, to pick it up for cents on the dollar. But this won’t last forever. Eventually people will begin to realize that fiat currency, whether paper or digital, is nearly worthless, then there will be a stampede into the metals. Hasn’t happened yet, but when it does it will do so quickly. Then we won’t find gold and silver like we can - right now.
@@sreetips I am 100% with you here.
The market is getting drier and drier, but I can still find gold and silver anytime I go out. Gotta be early and gotta know the hallmarks etc. Always a good deal to make, I think it is similar here in Germany.
Arab migrants know about metals, they are my competition out here when I am picking. But you are right, most people are clueless. This FIAT paper ponzi sheme will end in the near future and people will return to SOUND money.
The metals age is coming: Canned food, Gold, Silver and Brass.
I have lots of gold filled gold and outer crap . But I don’t know when to start
Based on what I know, it’s best to start small before going all in.
Hey Sreetips I love your videos! I recently heard a different refiner here on youtube say that Stannous Chloride only lasts about a month. Is that true? What happens to it. does it just not show gold anymore even if there is some or what happens to it if it becomes "no good" anymore?
Three months
I do wonder tho. With a good lab PSU could you not maybe do sequential electroplating?
That is one of the most unique buttons I have ever seen!
If there something up with the lighting or does it look strangley glossy on the top in contrast to sides and bottom?
I noticed that. It’s not borax. Looks very unusual. I could probably get it to mirror by inquarting, parting with nitric then double refine using different precipitants. But the video was already approaching an hour in length.
@@sreetips I'm glad you didn't. I had to get to bed. Lol.
I checked it out on ebay but it exceded my budget however, I did pick up on some silver crystal instead.
Did you put them in a plastic bag then burn them so all the ashes stay together for a while what was the point of the plastic bag? Thank you
I store them in bags. I burn the bags to ensure that I get all the material in the pan
49:18 I could just picture it going down the drain
Is it possible to weigh the gold bearing liquid and compare it to the weight of water to get a rough idea of the amount of gold and other precious metals present in solution?
I did that experiment in this video: ruclips.net/video/zDfujDqEPMo/видео.html
@@sreetips I have seen that one before but I’d forgotten about it. Started ~900g and the water was ~680g. The gold crystal was ~27.7g and there was some gold left in solution and some solids but I’m guessing less than the weight of the crystal. So that’s ~180g difference. Is that the difference in specific gravity of the acid vs water or what?
Does that pgm contamination means. We should be extra carefull while working in fear of platinosis?
Always assume that those dangers are present
I love watching your videos I have learned a lot but I have a question after I filter my gold flakes from using muriatic acid process my flakes disappear am I destroying my gold?
I’ve never had that happen. I’m just as baffled as you.
That was way cool of paul.
so after subtracting the cost of chemicals/consumables and lab hours... what is the net return?...
Don’t know, I don’t keep track of such things because this is my hobby