Spa aerator down a hill and below spa water level

Interesting. Per the manu, this blower should be installed 1 foot above the surface of the water. I think we are a bit out of spec. The pool is at the top of this (shoddy) set of steps.

Comments?

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It definately could have been better thought out. There are at least two ways to put the blower below water level though, one is a “hartford” loop and the other is a check valve. That’s also how self contained units are done. If I had no choice as to location I’d use both. There also may be a problem with the distance from the spa, more than about 10’ with out a hartford loop leaves too much water for the blower to evacuate each time it’s turned on and results in shortened blower life.