I read somewhere on here about running the pool pump for about as many hours as gallons of water in my pool. The, try backing off some to find the most economical, yet beneficial length of time to run. Correct? I have ours running from early evening into early morning. Is there a best time? Also, my robot runs the entire time. Is that too much robot time for my plaster? We are still getting residual plaster in our bag when we are in balance and CH is 300.