Hey guys,
Is anyone using these? In case I am using the wrong term, I'm talking about a valve that lets water flow one way but doesn't let it flow back. I'm just worried that if the power goes out the inflows will suction back into the sump which doesn't have all that much room (weiner sump

) so I'm looking for something that will stop this from happening. Anyone know where I can find one that is about 1" or so??
Christy
