I can't imagine us getting rigid beyond belief on items of pool chemistry. There are LOTS of ways to get things done--remember Ben's attack on a high calcium pool by using lots of cal-hypo directly through the skimmer (or something like that). I STILL have no idea what that was about but it worked!

(OK, maybe when it comes to adding calcium to a vinyl pool with a bloom we are going to be rigid and say "Save your money. It won't help!")