Koi Pond Build. DIY Pre-Filter. Sieve Filter. Control Valve. Plastic Weld.

This is part 8 of my Koi Pond build. In this video I show you step by step on how I build a DIY Sieve Filter or Pre-Filter. This is my first time attempting to plastic weld. It is a longer video, but it did take me a long time to get this filter built. Once the pond is up and running I'll do an update on how this filter actually works.
Please make sure to subscribe so you can follow along in my Koi Pond build progress. I appreciate any comments and suggestions.
Pond size 12"x8"x5" Approx. 3590 Gallons
Box-weld liner
Pond walls Earth and Railroad ties (sleepers).
Railroad ties 7"x9" 3 layers stacked to get an above ground height of 27 inches.
Dug down 33" and install a Koi Toilet 3" bottom drain.
Overall water depth will run about about 58 inches.
24"x48" glass viewing window.
Filter system #1 DIY Sieve into 3 55 gal barrel moving bed system.
Filter system #2 Pond Skimmer fed into a Bakki shower system.
Might try to incorporate some aquaponics in down the road.
Supplies used to build this filter: Links are affiliate links
K1 Filter Media: amzn.to/3KmKXgh
Bakki Shower Filter Media: amzn.to/4bx3hj0
Cheap Moving Bed Air Pump: amzn.to/4btCmEA
Bakki Shower Pump: amzn.to/4augl7m
2" Strainer for Pump: amzn.to/4byNNLc
Filter Media Sponge: amzn.to/4byXYPS
400 Micron Mesh: amzn.to/44UBpTe
Aqua Pure Filter Start: amzn.to/4548Cf9
Oxygen Test Kit: amzn.to/3yvMo9z
Pond Bomb: amzn.to/44ZiNSo
Hikari Gold Food: amzn.to/3wRipss
Aquarium Safe Silicon: amzn.to/3yH7TEs
5 lbs Dechlorinator: amzn.to/3wPPcxQ
Waterfall Spillway: amzn.to/3Vf6ZYM
55 Gallon Water Barrel (similar to the ones I use): amzn.to/4bubnZF
Plumbing:
2" PVC Ball Valves: amzn.to/3wRibS8
2" Check Valve: amzn.to/3wRibS8
2" Union: amzn.to/3wW8GRq
2" Flanged return: amzn.to/4dSk1mi
BulkHead Barrel Connector: amzn.to/3R1OWmh
3" Check Valve: amzn.to/4bA8k2e
3" Ball Valve: amzn.to/4buA3RD
3" Union: amzn.to/3KhSk8W
3" Gate Valve: amzn.to/3RnsO6j
1" Uniseals: amzn.to/3VdEWJd
3" Uniseals: amzn.to/45daJgZ
Latex Rubber Tubing: amzn.to/3wPPaWK
Electrical:
WiFi Smart Outlet: amzn.to/3WPgdw6
WiFi celling Lights: amzn.to/3UO8Fa4
100ft 6 Gauge Electrical Wire: amzn.to/4bPOXlb
Koi Wind Sock: amzn.to/4dVKUFP
As an Amazon Associate I earn from qualifying purchases
Thank you for your support!

[@LeTwistedOne]

Looking good zippy buddy can't wait to see it running 💯👌🧁👍👍👍

[@kevinwhite1077]

good work mate keep them coming

[@zippydoesit7690]

Thanks, will do!

[@timothyalanogrady]

Great video on your DYI Sieve filter

[@zippydoesit7690]

Thanks 👍

[@Lwimmermastermetalart]

Why doesn’t Zippy simply cut those 45 degree bevels on the table saw. Polypro cuts much better with a blade over a grinder

[@user-dy9zy5kr5p]

Wetland filter 👍

[@Franklykoi]

You need to notch the separation panels the top; say 1 inch from top and water line to prevent overflowing buddy 👍

[@simonshears5182]

Zippy quality workmanship 👌🏻Just a thought 💭 maybe a small slither of polystyrene on bottom of float box would make that damper activate more responsive 🤔

[@zippydoesit7690]

I ended up putting a bead of silicone around the butter fly valve, let it dry, and then used an Exacto knife to cut it open, now the butterfly creates a nearly water tight seal.

[@andybaldeo4773]

Bro you should put straps around the casing to help with the water pressure to prevent it from opening out

[@zippydoesit7690]

Thanks for the tip, i'll keep that in mind.

[@stevezphone]

This is cool. Did you end up using it? How is it working?

[@zippydoesit7690]

I'm using it, it's doing the job, I might redesign it in the future as I think the sieve could catch more. I only clean it once a week, I could probably clean it more often for better performance. I've added 2 layers of sponge on top of the sieve to help it catch more debris. (a course layer and fine layer). My water quality is excellent, I have about 20 Koi in the pond.

[@anaeldesprez6390]

Oui merci . Je vien😢 de chercher des plaques comme celle là et j'ais vue t'ais annonceo sur le .bon coing . Merci a toi de proposer ča

[@Maatson_]

Hi zippy I have a question so I’m running a 4” bottom drain . I connect the 4” bottom drain to the sieve ? And then convert after the pump to a 2” drain to the barrels correct ?

[@zippydoesit7690]

I have a 2 inch pipe coming out of the Sieve, but then i increase it to a 3" pipe into the barrel filter. The 2 inch pipe connects easier to my pump. Make sure your sieve mesh covers fairly well and doesn't escape. I'm going to redo the Sieve mesh and have it overlap more as I'm seeing muck escape between the cracks down into the section where the pump is. You don't want the muck to hit your pump as it will just blend it up and send it into your barrels. You want the sieve to catch as much waste as it can before continuing to the barrel filter. Hope that helps!

[@ChinhNguyen-ep3oh]

Hi where you buy plastic what plastic call

[@zippydoesit7690]

mcmaster.com

[@christianoneal4787]

What thickness did you use for the plastic sheets?

[@zippydoesit7690]

I used 1/4 inch.

[@ChinhNguyen-ep3oh]

Hi where you buy plastic weld

[@zippydoesit7690]

I got the welder off ebay, Plastic sheets from mcmaster, and the welding rods from Amazon.