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The last 3 posts

Saturday, May 29th 2010, 4:15pm

by LEH

Thanks! That worked and my sprinkler system is back online!

Saturday, May 29th 2010, 9:31am

by Wet_Boots

Close the valve downstream of the bonnet where the water is coming from. Now turn on the supply and open it completely.

Friday, May 28th 2010, 7:22pm

by LEH (Guest)

backflow preventer oveflowing

I had to replace the bonnet and poppet on my backflow preventer when I went to turn on my sprinkler system. However, when I turn it on with minimal water pressure, water comes up over the top of the new bonnet and poppet. I'm afraid that if I turn the water pressure higher, it will simply blow the bonnet and poppet again. Any ideas on what might be causing this? Could it be a problem with the check valve? How do you determine if the check valve needs to be repalced?