“it was for my boiler heat five heating and cooling company came out to fix it none did! it wasnt taking water. i checked for water flow none through the the vacuum breaker. ten min. change time and now we have heat thanks”
“Used this to replace a failed one ( began to leak from the vent) on my water supply to the boiler. The previous one failed after only a few months of use (new home)and I am convinced it is because I have a water hammer problem after installing a booster pump on my system. (street pressure is only 14 pounds so we boosted it with a well pump to 50 pounds). I have a water hammer arrestor on order from Plumbing Supply and will install this valve after I install the water hammer arrestor.”
“This dual check intermediate vacuum breaker is connected to my automatic pool water supply and stops any backwash from coming back into the water line.”
“The Back Flow Vacuum Prevention valve was an exact replacement for my old unit, it took me less than 30 minutes to remove and replace the valve. Turned the system back on and everything worked great!”
