Can some please help me with my thoughts on the operation of the duck bills. I see these as check valves.
So, there is one installed in the injector lets say. Return line pressure is 8 PSI. Pool pump on, stenner is off. 8 PSI pushes the duck bill closed and the pool water gets just that far. Stenner comes on and the pressure being greater than 8 PSI pushes the “valve” open and lets in the chlorine or acid. Am I missing something here guys ? Stenner shuts off after x minutes and the duck bill needs to close, but I see it having to “compress” for lack of a better word, the liquid between it and the stenner rollers. So it will not close unless there is a leak to drain off the pressure first? Writing this on a Monday so I might be brain dead from the weekend still..
Stenner tells me via email asking them if I can install a duck bill with a 25 PSI pump and they say no, it will not Stay closed at this lower 25 PSI . But But But, does not the pool return 8PSI close it ? I’m lost. Is there something magical in that 100 PSI injector so it works but won't with the 25 PSI.
So, there is one installed in the injector lets say. Return line pressure is 8 PSI. Pool pump on, stenner is off. 8 PSI pushes the duck bill closed and the pool water gets just that far. Stenner comes on and the pressure being greater than 8 PSI pushes the “valve” open and lets in the chlorine or acid. Am I missing something here guys ? Stenner shuts off after x minutes and the duck bill needs to close, but I see it having to “compress” for lack of a better word, the liquid between it and the stenner rollers. So it will not close unless there is a leak to drain off the pressure first? Writing this on a Monday so I might be brain dead from the weekend still..
Stenner tells me via email asking them if I can install a duck bill with a 25 PSI pump and they say no, it will not Stay closed at this lower 25 PSI . But But But, does not the pool return 8PSI close it ? I’m lost. Is there something magical in that 100 PSI injector so it works but won't with the 25 PSI.