Even the 20-21psi??? Before the solar heaters, I would let it go to 19-20psi, then I would backflush. What pressures would you let it rise to, before backflushing?
Re: How much sand to use in sand filter?
Even the 20-21psi??? Before the solar heaters, I would let it go to 19-20psi, then I would backflush. What pressures would you let it rise to, before backflushing?
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