B-B-B sounds pretty good to me. However, last night I used my last 2 lbs of calcium hypoclorite (powder super shock) after battling algae for the last 3 weeks (pool was constantly green). I don't have a good test kit -- I use the dreaded 'strips' and probably will keep using them for the rest of the season (closing pool in Sept). I ended up emptying about 25% of my 16K IG pool. So last night I gave it the 'shock' and today the water finally appears to be under control -- I estimate the FC to be just below 15 ppm (but can't really verify this with the strips). Anyway, if I'm planning on using bleach from now on, can I start it tonight to keep the pool in 'shocked' state (and at normal level) for another day (I mean after using the calcium hypochlorite? Any good advice is greatly appreciated...