Quote:
Originally posted by melev
Cheri, I just woke up so forgive my lack of comprehension (I'm drinking coffee, I promise!), but how does that solve the problem?
Water comes up the standpipe, comes out the holes, goes down the inverted 'vase' and flows into the tank. When the pump is off, water siphons out the same way, right? What breaks the siphon?
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My husband says you are a smart cookie for noticing that something was missing from the explanation. You are absolutely right..... he drilled a very small hole near the top of the outside tube.... facing the back of the tank, pointing down, to reduce the surface disturbance.... which will act as an air release to break siphon if the check valve fails when the pump is turned off.... this hole needs to be cleared every so often, as algae or debris could clog it up...
Cheri