One other question. Are we talking about regular clorox bleach? I'm guessing here but if I put in a gal a day I have to buy 7 gals a week. The amount of trips to buy the bleach and placing it in the pool everyday seems like a lot of work compared to dropping in the pucks once a week but I see everyone here has great results from the bleach. I think Ill probably keep using the pucks and then curse myself after I see the first algae bloom. LOL