HI - neighbor hasn't yet found her way to TFP. Dealing with algea, I offered to bring my testing supplies and find out what going on. Pool AG round, 19300 gal, Hayward sand filter, 3/4 HP pump.
FC - 0
CC - 16
CYA - up ti fill on K2006 and still see dot
Knowing she needed SLAMI put in 2.6# cya and we dumped 3 gal 8.25 wallyworld chlorine. (about 6pm last nite) (Found she had added a "90 day algaecide" over weekend) She checked FC around 8:30 (3ppm) had her add 1-1/2 gal bleach. She tested 6AM and again added 1-1/2 gal bleach.( Also she had been brushing and backwashed pool several times over weekend, so alot was already cleaned of stuff)
Since she works, I agreed to do testing and bumping today (did two refills on own pool last year) know how important keeping slam le vels up. Tested again at 10:30, same 3ppmFC, added two gallons and again at noon, 3ppmFC, added another two gallons. Will say pool color now a light aqua green.
Did a CC and at least ha dropped to 13PPM. Checked CYA even though we are in rain mode, the sample was at least cloudy now and level seemed to be about 40ppm.
Keep doing what we have been? Was seeming strange tests were coming up consistent, loss to 3ppm each time)