I tried adjusting PH 3-4 times this season, but it climbs back to 7.8 in a couple of days.
My TF kit from last year shows TA at 100. Leslies Taylor 70, 80, 90 (depending on the store). I found a Leslies employee I like and watched her do it twice - both times I counted 7 drops myself.
I keep my TF kit covered in the box it came in (plastic + cartoon). Kit was in the garage over the winter, where the temperature was above freezing, may have dropped to 32 once or twice but I doubt it. (I monitor temp in the garage - have water pipes there)
Could my kit go bad or is leslies Taylor over concentrated?
Can "Ph Down" ("pool time" product from home depot) have an expiration date? I used it all already, and just now added some "Ph Down" ("aqua chem" product from target). Both products were purchased last year
I use liquid chlorine, my other parameters are within range and I have not done any work with the pool surface (concrete).
P.S. (919) 528-1104 - TFTestKits.com contact number is occasionally out of service. I tried calling 4 times, 3 times I got an "out of service" message