Is there a an 'ideal' amount of time that a spillover Spa should receive filtration time? Ok, I know what you are going to say, but in this case I have a pool robot running, main drain is shut, and all but about 10% of one of the skimmers open (i.e. almost all suction is going to robot). How do I handle this situation? My spa water is STILL. How much time should I run the jets or bubblers?