Dear visitor, welcome to SPRINKLER TALK FORUM - You Got Questions, We've Got Answers. If this is your first visit here, please read the Help. It explains how this page works. You must be registered before you can use all the page's features. Please use the registration form, to register here or read more information about the registration process. If you are already registered, please login here.
Advice for new system install?
Just starting my homework for a new system.
We have 38-40 psi static pressure, 7-8 GPM at a 1/2" hose bib. Should be more I assume if fed off of a 3/4 or 1" line. City code requires an RPZ valve. Max run to furthest heads(6)sprays is 160-170ft. Plan on 9 zones at 6-7 GPM per zone
Heres my choices to date;
Hunter PSC900i,Pro-c or SRC controller for 9 zones
Wilkins or Watts RPZ valve
1" PVC valve manifolds (3)
Weathermatic of Irritrol 1" valves (9) Leaning towards Irritrol
1"polypipe throughout from valve boxes (Northern Illinois)
15 Hunter PGP rotors-Enough pressure to run these?
23 Rainbird 1804 VAN sprays
3 Hunter 5 X 18' side strip sprays
Blazing saddles poly connectors with Hunter funny pipe risers
9 end-line drain valves at low point of each zone
If this sounds any good, or any other suggestions, or if I'm completely off base, please reply
Thanks alot, Paterjb
Sounds pretty good! How many PGP's do you plan to run at one time??
I plan on 3 zones with PGP's. The largest is 6.16GPM total using 5 PGP heads.
Do you see a problem with my pressure or anything else.
Will the PGP's open and work?
Thanks
PATERJB
Yes that is enough pressure to push up a pgp. sounds good. I know that ray will say irritrol valves. Plan on winterizing with a compressor even with drains. I do. There is too much money at risk here.
Thanks,
Pete
Thanks for all the input on the system so far. Alot of help!!!
One more question. If I get 1" FPT's on the control valves, I assume I need a nipple that is 1" barb and 1" MPT to connect to my 1" polypipe.
Where do I get this type of nipple? Is this correct or am I all wrong.
Yes. Get it the same place you are getting the poly pipe from. This is a poly pipe fitting not pvc and so it is gray in color. I get mine from home depot. I think SW may have these fittings also.
Thanks,
Pete
SprinklerWarehouse does have just about any fitting you can imagine.
Everything sounds great! Deffinatly go with the Irritrol 2400T valve, and the SRC controller... the pro - c is a more updated controller with moudalulatry (i dont think thats spelt right) so it can now expand to 15 zones. the proc is an expandable controller...your choice.....everything else is great!
Thanks
Ray
Rays Above and Beyond Automatic Lawn Sprinklers
Your pressure is WAY TOO LOW! You will have a minimum pressure loss of 25 psi leaving you with 15 psi for the heads. Double check your pressure readings!
I'm starting to get confused. Comments from the forum say my designed system will work and others say it will not work. 38-40 psi before the Wilkins 1" RPZ as read through a 1/2" hose bib. Hope my guage is correct. Don't really know if it will rob 10-12 psi as stated in the wilkins literature. That leaves 26-30 psi to drive the rotor heads (5) 150 feet away in 1" poly pipe. Any thoughts?
I am going to tee off my 1" main after the meter and go directly outside with 1" copper (~ 40ft). Will that help my situation?
Thanks
SPRINKLER TALK FORUM - You Got Questions, We've Got Answers »
Help with Design & Installation »
Design Issues »
