On Sep 16, 2:00*pm, " wrote:
On Sep 15, 8:17*pm, wolfgang wrote:

To run the pump is about $400 for 6 months. *I've tried to put the
pump on a timer but during hot weather the water doesn't like it and
turns green. *I'm afraid to cycle the pump more than once every three
hours or so as this shortens the starting switch life expectancy.

Wolfgang

A *thought. *Could you connect a lawn sprinkler to the output of the
pump and have its output come down into the pool. *The water droplets
would adsorb oxygen in the air and the agitated pool surface would
also add oxygen to the pool.

My understanding is that releasing air at the bottom of the pool does
not work so well. *Too much nitrogen gets adsorbed by the water.

* * * * * * * * * * * * * * * * * * * * * * * * * * * * * *Dan




Thanks for all those suggestions, they are greatly appreciated!

Currently I have a floating chlorinator that I fill with 3" dia.
"pucks" every 10 days or so. For July and August I also add an
algicide. I used to have an automatic chlorinator, also with pucks,
but it was very difficult to keep the chlorine level properly
adjusted.

Spraying part of the returned pool water through the air to absorb
oxygen can be done with a small pump while the main pump is shut off.
Running the main pump 4 to 6 hours per day sounds REALLY appealing!

Ozonation is another item to look into. I seem to recall that this
method is also used for drinking water treatment in some areas?

All good stuff. Thanks again.

Wolfgang