Thav

Thanks for the replies, guys. I was thinking it might be something like chem geek mentioned, but really just on a hunch that I can't act on. Now to go check if I still have a little froggy friend still hanging out on my control panel.

Hey everyone. I've been reading up on the advice here and was thinking to try the chlorine bleach method on a hot tub in the house I recently purchased. When I went to buy my chemicals, I mentioned the maintenance routine to the salesperson (dichlor to get CYA up, then bleach) and they strongly recommended against using bleach because "it damages the rubber seals and the whole thing can rot out". I'm not sure I buy it. Any experience with this, or has anyone heard this before? In the meantime I've just been using dichlor since I haven't gotten my CYA levels up yet anyway. Cheers for all the advice and good discussion here.