Is There a Automatic Fill and Drain system that is available
I was looking for a System that will change 10% of the water daily. Is
there a automatic one available? I could build one but how do you drain
at the same time as filling? I I have a 1/4 inch tubing that opens with
a timed valve how do I drain it though. I have no over flow. And what
about one for a aquarium? Are the available? Thank you
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