My pool is being built (my first pool, so all I know about water chem is what I have learned from this board). Anyway, I was thinking that when I switch over to spa mode, the liquidator would quickly ramp the FC up to > 20 PPM in 1 hour unless I adjust the flow every time I go to spa mode. Does that make sense? My spa is 900 GAL and my pool is 19000 GAL. Seems like I'm pumping the same chlorine into only 5% of the volume of water. I think it would defeat the purpose of having auto SPA switch over controls if I have to always adjust the Liquidator flow. Thanks for your help!