I tried to use the search function, and it didn't go too well , so here goes.
Started the season with a CYA level of about 35, and really had not paid too much attention to it in the last month or so. Kids have been swimming daily for weeks(so a fair amount of splash out), and we are on our 18th!! straight day of 100F days, so I am sure evaporation has played a part(I have an auto fill).
Have noticed over the last week or so my cl usage has increased from a quite consistent 2.0 to 2.5 ppm a day to 3.5 to 4.5 ppm. I then proceed to check the CYA level, and it might be 20. Time to add some!!!
I have a cartridge filter, and do not plan on cleaning it anytime soon(doesn't need it). Last time I added CYA, I had no POP, and bought liquid. This time I am going to add granular, and have a couple of questions.
1) I can dilute it in a bucket, and pour it directly in to the skimmer, with the pump running?
2) How long should I leave the pump on after the addition?
3) The pool rec. HOT, full sun for 12+ hours a day. My previous level was 35. Should I shoot for 40 to 50 with this addition to decrease cl usage?? How big a difference will the increased CYA level make in cl usage??
As always, thanks in advance for ALL the great info!!!