I've been lurking for a month or so and need some help getting on top of the pool. A little background on the history of my pool. I just purchased the home in April 2015 and I believe the pool was built sometime around 2002 (based upon the date stamps on the lights). The home was a foreclosure and the house sat vacant for around a year and a half. When we moved in we had the pool drained and acid washed (everything was black) and are now in the middle of going through/replacing some equipment. Pumps operate OK, filter got a thumbs up from the pool service company but the heaters are dead and the plumbing is a mess (I'm chasing a suction side air leak that is causing some frustration). Also I've replaced the SWG cell and purchased a Dolphin M500 Supreme and a TF-100 test kit.
If I were to give my current situation a headline it would be "I'm having a hard time keeping chlorine in the pool." The new Intellichlor IC 40 SWG is running at 100% for about 10-12 hours per day and the chlorine levels always seem to be low (1ppm or less). I'm pretty sure the SWG is operating correctly because the water coming out of the jets shows higher Cl readings than the skimmer side of the pool. I just can't seem to keep the Cl in the water.
I know I have some CYA level issues I need to fix (I added one bottle of HTH stabilizer) and am considering SLAMing the pool (to kill what's be eating the Cl), but I want to be thoughtful about where and what I start with. SLAMing will kill anything I may have growing in the pool, but may not be the root cause of why I can't hold the Cl.
Here are my current test results as of 10:30am on 6/28/15:
FC - 0.5
CC - 0.5
pH - 7.8
TA - 132
CH - 225
CYA - 30
These were done with the TF-100 and are my first tests with the new kit.
My interpretation of the results for my Salt Water Plaster pool:
1. FC is low and needs to be raised
2. pH is acceptable
3. TA is high and needs to be lowered
4. CH is low and needs to be raised
5. CYA is low and needs to raised
My question after this long winded first post is "Where should I start first?" I'm inclined to add bleach to quickly raise the FC levels and add more HTH Stabilizer to get the CYA to a point where the pool can hold on to it and the SWG can maintain it at a reduced run time.