Quote Originally Posted by waterbear
post your calcium numbers....also bring your fc up by 1 ppm per day after the treatment
New numbers as of Noon today:

TC - 0
PH - 7.4
TA - 80
CH - 600 (No change dispite 6 days of filtering??)

All tests performed with PS234.

Question concerning raising CL by 1ppm per day. I've been bringing it back to 2ppm each day, usually drops back down to about .5 or zero). If I take it back to 2ppm this afternoon, and it drops to zero or .5 by tomorrow, do I then take it to 3ppm tomorrow anyway? 4ppm the next day, etc? Do I need to continually check it and add bleach during the day to keep it at that days level?

With full sun most of the day, and these low levels of CL, it is almost guaranteed to drop to close to zero during the day unless I continually add bleach. Prior to this treatment I was running the pool at about 5ppm due to 50ppm CYA level.