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thanks

so even after dissolving out of a sock in the skimmer, we should wait about a week to take the measurement?

so i just did the overnight test with my SWCG off last night and my before and after reading were .5ppm apart. i started my shock on Friday and my overnight test results were in on Monday. here is what i'll plan to be doing, please let me know if this sounds right. 1. turn the SWCG back on...

So just let my CL lower down after shock and then start my adjustments when in range?

thanks for all the great advice. after an overnight test shows a loss of less than 1ppm in CL, is CYA the next thing to get up to the correct levels? and then PH and TA? also, for CYA, if i let it dissolve in a sock in the basket, do i still need to wait a week for it to completely be...

50 was what i was expecting. when i measured this morning, it was 40 and that's what i used for my shock value. since i have a SWCG, but my CYA was only 40, i was going to shock with FC of 16. does that sound about right?

that was my reading but done the day after the dry CYA dissolved. should i still wait 1 week and take another reading before i shock it or just take one now and use that as my CYA shock value?

oh.. and thanks for the quick response!

so once i have PH, TA, and CYA to the desired levels, i can use the Chlorine/CYA chart to determine how much bleach to use to get the FC up to the recommended level for shocking my pool? should i get my cya to 70-80 prior to shocking?

brad, did you add bleach to raise your chlorine?

hi all, I just bought a house that has a 18,000 gallon in ground pool with a SWG. the previous owner kept the SWG running at 60% and let me know that maintenance was fairly easy and all he did was monitor PH and Chlorine amounts. thanks to this site, i know it's more than just that! here...