"John Bachman" wrote in message
...
An alternative is to install a flow control valve in the water line.
Then adjust the flow rate to what you want. That way there is no
interruption of water, O2 and nutrients to the bacteria.
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I read somewhere that back-pressure on a pump wears it out faster..... I
haven't a clue if that's true.
--
McKoi.... the frugal ponder...
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