Hi-- This is my first time to post here but, I am desperate. My husband, Freddy, is trying to fix leaking sprinkler heads. He has replaced all the heads with new ones. They all work except for one. He turned off all of the main water valves but, water keeps flowing out of the sprinkler that isn't working. Does anyone know what to do or to point us in the right direction for help? The sprinklers were working fine until that one head went out last Friday. He is driving me nuts!! He is learning as he goes on repairs (our first home). He is to the point of wanting to call a sprinkler person today, Sunday!! I have tried all the headers on the net to try to get info but, no luck. Thanks for any help you can give us.