New to the forum and what a great read! I have read, and sometime re-read AND watched the Slam video several times and I wanted to make sure we are on the right track.
First here is a little background...We bought a foreclosure house with a huge beast of a pool. Its 20x40 and roughly 40,000 gallons. From what we can tell the pool wasn't opened for a least a year, maybe more. We had a pool company come out a little over a week ago (6/10) for some help to get the old pool running. It was built in the 50's by Paragon. We had to fill the pool with about 2'-0" of water to start...and man when we took off the cover it was a swamp!!! The pool guys added a product called turbo, and told me to add liquid chlorine and some chlorine floaters to the pool. The pool started to turn from green to blue, so after watching another video, we flocked the pool friday night, thinking we were done. (We since have read up on flock and we now have a better plan of attack after reading this site)...but thats what we did
We vacuumed the pool to waste on saturday. The deep end was still a bit black / cloudy, my guess is from all the algae. We got so much debris and algae is was disguisting! LOL. Then we brushed Sunday, and vacuumed again, but since it was cloudy and we couldn't see the bottom we did what we could. We kept filling the pool at the same time we were vacuuming. Sometimes I just had to watch the vision glass on the multi port and waste line to see if I was getting anything out of the pool. We brushed the pool again late sunday and after sitting for a day Monday (no pump / filter on)...We have a green pool again. To be expected since we found this website yesterday and i began to study it and I now realize that the algea wasn't dead or gone from the pool!!
We tested the pool last night and here is our readings
FC = 0
CC = N/A
TA = 90 ppm
CYA = <30 (not even reading on the test)
PH = 7.2
CH = 60 ppm
So here is my thought process....while using Pool Math...and the Stabilizer / Chlorine Chart...it states a CYA of 20 or less isn't recommended to SLAM. Soooo I went out and bought enough stabilizer to add to the pool to get us to 30. I basically need to add 10 lbs to the pool. We backwashed the filter, added more DE, and put the filter back on. I also added 4 bags of powder "shock max blue" (dichlor of 68%) since our CYA was so low I thought it wouldn't be a bad idea. Again I'm new, so I hope I didn't make a bad call. We loaded stabilizer into old socks and put them around the pool last nite. This morning the pool was blue, and I went and squeezed the socks to release more CYA into the pool and we did a new FC reading. The FC = 3.4.
My question is, I assume that I have to wait until I raise the CYA to a minimum of 30, before I can use liquid Chlorine and start to SLAM the pool? My shock level FC will be between a 10 - 12 once I have a CYA reading. I will continue to brush and vac the pool daily until the CYA level is raised. Is there anything else I should be doing while I wait for the CYA to come up? Should I raise the PH, since i'm just shy of the 7.4 mark? I hope i'm on the right track, and my thought process is accurate.