We use a toilette valve. Never have to do a thing. You can see it on the
website (below). Easy to install.

Jim

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See our pond at: home.bellsouth.net\p\pwp-jameshurley
Ask me about Jog-A-Thon fundraiser (clears $120+ per child) at: jogathon.net

"RedForeman ©®" wrote in message
...
i'm debating the pond thing, the wife is bouncing off the walls hoping it
comes thru...

water changes and auto fills came to mind... do ponders just pull over the
hose and add water or do they incorporate a top off valve in the system
somewhere, and if so, where? at the trickle filter?

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