|Posted by Dany Shaffer on March 08, 2002 at 13:26:24:|
|In response to toilet clogs|
: : : : I have an underground lawn sprinkling system in New York City. Does it need a dual-valve back flow preventer, or is a vacuum-relief valve adequate?
: : : Walter, It needs a double check on your sprinkler. Install a blow off for draining the system with air pressure in the fall. Dale Peck LMP
: : : Thanks, Dale. By the way, I'm a NYC LMP, retired too long to keep up with modern code requirements. Walter B
: Walter, I started my trade in long Island (15yrs) then moved to ks. Total 37yrs. I have a deep respect for a LMP out of NYC. Dale Peck LMP
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