Huh?
To answer the original question, I haven't done anything like this but I am curious. If you end up trying it out I would like to know how well it works, especially for that price. Its a stock tank auto fill valve for cattle or horse or whatever troughs. Someone put some PVC on it and is selling it as a pool gadget for much more. But if it works for you, go for it and let us know how it goes.
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