We had the pool tech out today to look at our scupper problem and also some marks in the pool and spa. We were talking about all the little stuff - leaf fragments etc., that always seems to settle in the bottom of the spa that I can't seem to get out with the brush or net. He told me to turn the air blower in the spa on while brushing it, it opens the drains and will really get the crud moving! :splash::splash: