You are not logged in.

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.

smogcops

Starting Member

1

Thursday, August 3rd 2006, 1:06pm

water hammer

Each time my control turns on the system I get water hammer. Is there a valve that I can install on the main water to prevent this

Wet_Boots

Supreme Member

Posts: 4,088

Location: Metro NYC

2

Thursday, August 3rd 2006, 4:05pm

Make certain the pipe is well fastened. Banging when a valve opens can point towards an undersized water supply. No easy cure.

Tom

Supreme Member

3

Wednesday, August 9th 2006, 10:57am

undersized lines
high pressure
too many sprinklers on a zone
fast closing valves
pressure reducing valve failure


Bill Painter

Advanced Member

Posts: 59

Location: Phoenix Az USA

4

Thursday, August 10th 2006, 4:58am

Is the water hammer on EVERY valve? Run thru' the system and ID which valve causes the problem. If it's all the valves, then Tom and WetBoots have nailed it. You have to slow the water down, and in some cases, using head that have considerabley less flow in gpm, can solve the problem. I've also managed to get hamering to stop by adding a hydro arrestor at the far end of the mainline (IF it isn't branched.) This isn't really a proper fix, but it has stopped the banging for some customers.
The Irrigation Specialist Mfg' Az.
Please check my website and you'll find what I do and the unique tools I make and market.
Real timesavers, especially the Suck-Tube and Krik-It.
http://www.tismaz.com

Rate this thread