Is there any reason I can't run my Intelliflo i1 pump at the factory default speed of 750 rpm (speed 1) for 10 hours to do my daily circulation? Using the graph of flow rates for this pump available on the "More" tab of Pentair's webpage, it seems that I can get 20 gpm, roughly 10 hours to do a complete water turnover. This is without the Kreepy Krauly attached and without diverting water to the roof panels:
http://www.pentairpool.com/pool-pro/pro ... mp-451.htm
At this speed my pump LCD screen shows that I am using only 100 watts. I have only seen posts mentioning using 1000 rpm or higher. The temperatures in the summers here (next to Oakland, CA) don't average more than about 70 degrees.
I am currently trying to only run my Kreepy Krauly cleaner on a weekend day for 3 hours at 2000 rpm, good enough for a water turn-over. In the past raccoons have bitten into my cleaner hose causing my last pump, a WhisperFlo to run dry and damage the seals so doing the cleaning on weekends allows me to monitor the start-up. I generally don't get much debris in the pool.
The variable speed pump was just installed a week ago so I won't know yet how well the algae will be kept in check with the EcoSmarte non-chlorine system (requires pH 6.8) and the sand filter with glass media.