Leaking sprinkler head

Old 10-28-17, 05:11 PM
Thread Starter
Join Date: Jul 2007
Location: Mexico
Posts: 332
Upvotes: 0
Received 1 Upvote on 1 Post
Leaking sprinkler head

We have a 4 zone toro system. Everything works fine but zone 4 leaks out of the heads forever. Yesterday I opened all the valves and everything looks fine. Over time I have replaced many heads with RainBird SAM heads,, but that is getting expensive. New valves / new solenoids - still leaks. What next ? Thanks.
Old 10-29-17, 04:41 AM
pugsl's Avatar
Forum Topic Moderator
Join Date: Mar 2008
Location: United States
Posts: 8,161
Received 77 Upvotes on 70 Posts
Most likely dirt in seals of valve. Take top off and clean. If valve body is scored than valve will have to be replaced.
Old 10-29-17, 04:48 AM
Group Moderator
Join Date: Mar 2003
Location: NC, USA
Posts: 27,759
Received 2,181 Upvotes on 1,951 Posts
If there is no dirt inside the valve I would first try replacing the diaphragm. While you have the valve body opened run your finger around the surfaces where the diaphragm touches feeling for the scoring/scratching that pugsl mentioned. If it feels smooth I would would just try a new diaphragm but if you feel that the body has been eroded/scored away then it will need to be replaced.
Old 10-29-17, 06:00 AM
Marq1's Avatar
Join Date: Sep 2016
Location: USA MI
Posts: 9,745
Received 1,210 Upvotes on 1,098 Posts
Are the heads below the valve such that all the water in the line is leaking out till empty of is the leaking water constant?

Thread Tools
Search this Thread
Ask a Question
Question Title:
Your question will be posted in: