He means that, if you have a suction side automatic pool cleaner, and it gets above the pool's surface while it's cleaning the pool, it can introduce air into the system.
He means that, if you have a suction side automatic pool cleaner, and it gets above the pool's surface while it's cleaning the pool, it can introduce air into the system.
Mr Evan Wellens of New York has been abusing this forum, and others, by running simultaneous identical threads here and at two other forums.
Since he works in IT, he can't really claim, "But, I didn't know! I'm so sorry!"
He is now banned.
PoolDoc / Ben
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