Quote Originally Posted by PoolDoc View Post
Yeah.

I can make a pretty good guess about what's going on -- but move past guessing, you'll have to collect some info for me.
  1. What was your CYA level, when you opened your pool?
  2. What was the DATE of that test?
  3. What was the DATE of the test above (w/ CYA=100)
  4. What sort of chlorinator have you been using?
  5. What did your pool water look like when you opened?
  6. What does your pool water look like, now?
  7. List ALL the chemicals used since opening, both kinds & quantities.

If you'll answer those questions AND will complete our new Pool Chart form, I probably can tell what's been going on. The chart takes about 30 seconds, but will save much more than that.
Pool Chart Entry Form
Pool Chart Results
However, that information probably will NOT change what it's going to take to finish cleaning your pool. Most likely, there are just 2 options. EITHER drain and refill (probably NOT an option with a liner pool!) OR add chlorine till 'it' is gone.

You can answer the question, "how much more will it take?" with a bucket test, but you'll need a K-2006 or a K-1515 to do that test. (See info link in my signature.)
1. I don't know
2. I don't know
3. 6/8
4. In line Hayward
5. Terrible dirty and green
6. Clear no algae looks great
7. 30lbs alkalinity, 30 lbs ph+,20 bags super shock, 34 gal Liquid Chlorine

It is 6/13 today and the pool seems to be holding chlorine. It has been 2 days and reading is 10. The last dose of 10 gal of liquid chlorine has seem to work. The reason I don't know the answers to 1&2 is we have 4 pool stores in our area and the first two I went to didn't even tell me about CYA. I started to do research on the internet and learning a little about pool chemistry. So before I found your site I had ordered a K-1005 and amonia kit. BTW my amonia level was 8+. Today's readings Chlorine 10 PH 7.5 Alk 170 Hardness 160 Amonia 0 CYA 55.

Pool looks great. I will look at the kits you suggest.

Going forward. Do I use a powdered dichlor weekly or a liquid or not at all unless reading is below 2?