HI:
I've been using the TFP method of pool care for near 2 years now and have had great results. Three times I needed to use trichlor tabs for vacation purposes. I had raised my CYA to 40 ppm early in the season using dry CYA, and expected my numbers to rise after said vacations. That's my problem or I should say my question. I have been back from a vacation for a week and then tested my CYA using TF-100. My son used eight, 8 oz., trichlor tabs and my CYA numbers have not changed at all. My pH and TA dragged down a bit but that's all.
This is the same result all three times. I'm very careful with my testing, I have read the extended instructions a number of times and I can't figure it out. According to the Pool Calculator, my CYA should of raised 27 points.
Thank you,
Ed
FC - 5.5
CC - 0.0
TA - 70
pH - 7.5
CH - 170
CYA - 40
Crystal clear and sparkling.
I've been using the TFP method of pool care for near 2 years now and have had great results. Three times I needed to use trichlor tabs for vacation purposes. I had raised my CYA to 40 ppm early in the season using dry CYA, and expected my numbers to rise after said vacations. That's my problem or I should say my question. I have been back from a vacation for a week and then tested my CYA using TF-100. My son used eight, 8 oz., trichlor tabs and my CYA numbers have not changed at all. My pH and TA dragged down a bit but that's all.
This is the same result all three times. I'm very careful with my testing, I have read the extended instructions a number of times and I can't figure it out. According to the Pool Calculator, my CYA should of raised 27 points.
Thank you,
Ed
FC - 5.5
CC - 0.0
TA - 70
pH - 7.5
CH - 170
CYA - 40
Crystal clear and sparkling.