I have been using Trichlor - it's usually around this time of year when I switch to bleach - I add some CYA in the spring and then use the Trichlor until my level gets to 100 - which is what it's at now. I have not been using anything else - never had this happen all last year.

I could not find any borax yesterday so I added 3# of baking soda - I did not have time to test the TA before work this a.m. but I tested the pH and it's "lower" - as in it tests as yellow as the chlorine - at least yesterday it was a little "pink".

I'll have borax to put in this evening BUT is there something else going on here?? Is it okay to swim?? REALLY - I have not put anything else in the pool and the trichlor is the same as what I used early in the season last year - Lowe's brand. WE have had some significant rain the last 7-10 days - probably 1 1/2" and it's been so dry that up until this past week all water added was municial water that tests generally around 7.2-7.6.