after I removed the original system where I live that was designed terribly and designed and installed a whole new system to my yard I originally used 4" pop up bodies with rotary nozzles before renovating my yard. I planted perennial rye grass and a fine fescue mix. Due to perennial rye grass needing to be kept to a higher cut than some other grass types I had issues with lower trajectory streams being able to spray past the grass blades unless cut shorter than recommended for perennial rye grass causing the areas the lower streams normally should spray to receive less amounts of water. I then replaced all the 4" inch heads with 6" inch heads and that helped the rotary nozzles perform as they were intended. I have since killed off my lawn and currently planting a 3 cultivar pure kentucky bluegrass mix to hopefully have a pure kentucky bluegrass elite variety lawn that I can cut low so 4 inch heads may no longer be necessary for my lawn but even with the lower cut grass I still feel like the 6 inch heads are beneficial to the rotary type nozzles performance and coverage but that's just my opinion based on what i have seen personally in my yard. Do you think that rotary nozzles can benefit more on 6 inch heads over 4 inch heads in general or do you believe my theory is incorrect? No hard feelings on if you believe I am wrong. Just wanting to get an opinion from someone who is way more experienced than I am and is a professional at irrigation where I am not at all. Thanks
J, I think 6" popups are great for cool season grasses like yours for the reasons you mentioned. I've seen others do the same in Bakersfield, CA where overseeding is done in the Fall or where Tall Fescue is allowed to grow long for water retention in the summer and at the time I worked there that was before rotary nozzles were a thing so guys were just using standard nozzles or Toro Stream Rotors (now obsolete). Thanks for your detailed thoughts.
Jim, how do you feel now?? Part 3 will be available in a couple weeks. I am still waiting for the lawn food to be in full green mode before filming it.
@@SprinklerPros Not much better, for my front yard I purchased the Hunter 1-20, small Ca. front yard, now I wonder if I have enough pressure, so I ordered through your resource pages the hunter pressure gauge, and for the back yard, all 3/4 pipe I need to cap 10 sprinkler heads so I need to get the caps. Is it best to use a pressure gauge for the whole system or just buy the pop heads with built in pressure? My system is at full district pressure ranges from65 to 90 PSI. I think it might be cheaper to pay your consulting fee then keep chasing my tail.
Hello how to tell the closest approximation of gpm of a given pipe diameter for this type of applications. You said a 1inch can handle 12gpm. Internet has many charts with very different values though
When I don't know the class of pipe (whether it's class 120/200 or schedule 40 PVC) I default to doing the math assuming it's schedule 40 PVC since it's a smaller internal diameter because I'd rather err on the side of having less water flow than more and be wrong. Most guys install laterals with class 120/200. I only use schedule 40 since it's more durable. I hope that answers your question.
![YoungBoy Never Broke Again - Sneaking [Official Video]](http://i.ytimg.com/vi/1ILUps2zDFU/mqdefault.jpg)
Thanks Tom! Lots of good info to help solve these problems. Appreciate it!
after I removed the original system where I live that was designed terribly and designed and installed a whole new system to my yard I originally used 4" pop up bodies with rotary nozzles before renovating my yard. I planted perennial rye grass and a fine fescue mix. Due to perennial rye grass needing to be kept to a higher cut than some other grass types I had issues with lower trajectory streams being able to spray past the grass blades unless cut shorter than recommended for perennial rye grass causing the areas the lower streams normally should spray to receive less amounts of water. I then replaced all the 4" inch heads with 6" inch heads and that helped the rotary nozzles perform as they were intended. I have since killed off my lawn and currently planting a 3 cultivar pure kentucky bluegrass mix to hopefully have a pure kentucky bluegrass elite variety lawn that I can cut low so 4 inch heads may no longer be necessary for my lawn but even with the lower cut grass I still feel like the 6 inch heads are beneficial to the rotary type nozzles performance and coverage but that's just my opinion based on what i have seen personally in my yard. Do you think that rotary nozzles can benefit more on 6 inch heads over 4 inch heads in general or do you believe my theory is incorrect? No hard feelings on if you believe I am wrong. Just wanting to get an opinion from someone who is way more experienced than I am and is a professional at irrigation where I am not at all. Thanks
J, I think 6" popups are great for cool season grasses like yours for the reasons you mentioned. I've seen others do the same in Bakersfield, CA where overseeding is done in the Fall or where Tall Fescue is allowed to grow long for water retention in the summer and at the time I worked there that was before rotary nozzles were a thing so guys were just using standard nozzles or Toro Stream Rotors (now obsolete). Thanks for your detailed thoughts.
I watched part 1 and I do not feel so good, hopefully this will help.
Jim, how do you feel now?? Part 3 will be available in a couple weeks. I am still waiting for the lawn food to be in full green mode before filming it.
@@SprinklerPros Not much better, for my front yard I purchased the Hunter 1-20, small Ca. front yard, now I wonder if I have enough pressure, so I ordered through your resource pages the hunter pressure gauge, and for the back yard, all 3/4 pipe I need to cap 10 sprinkler heads so I need to get the caps.
Is it best to use a pressure gauge for the whole system or just buy the pop heads with built in pressure? My system is at full district pressure ranges from65 to 90 PSI.
I think it might be cheaper to pay your consulting fee then keep chasing my tail.
Jim, feel free to email me and we can get this going for you.
Hello how to tell the closest approximation of gpm of a given pipe diameter for this type of applications. You said a 1inch can handle 12gpm. Internet has many charts with very different values though
When I don't know the class of pipe (whether it's class 120/200 or schedule 40 PVC) I default to doing the math assuming it's schedule 40 PVC since it's a smaller internal diameter because I'd rather err on the side of having less water flow than more and be wrong. Most guys install laterals with class 120/200. I only use schedule 40 since it's more durable. I hope that answers your question.