Neglected pool

[wschneider]

My pool is gorgeous thanks to TFP. The problem is my in-laws 18k Fiberglas with fresh sand filter but using pucks only. Here are the numbers using tf-100.
FC-3.5
CC-0
PH-2.5 (yellow only with k1000, digital meter reads 2.5)
TA-0 (I’m guessing, sample turns bright red after adding R-0007 & R-0008)
CH-175
Cya-over 100
Water is cloudy, but not green. No visible algae. Are these PH and TA tests correct? Would that cause cloudiness? How quickly should I add soda ash? I’m thinking I need to balance the water, get them off trichlor pucks, and lower Cya ASAP. Any suggestions are greatly appreciated.

 

[mknauss]

Welcome to the forum!
They have vinegar. TA is most likely negative.
Use soda ash. Use pH of 6.8 and TA of 0 in Poolmath. Target pH of 7.4. Do in small amounts and test.

You will need to drain to lower CYA. But if they have a heater, it is being destroyed.

 

[wschneider]

Welcome to the forum!
They have vinegar. TA is most likely negative.
Use soda ash. Use pH of 6.8 and TA of 0 in Poolmath. Target pH of 7.4. Do in small amounts and test.

You will need to drain to lower CYA. But if they have a heater, it is being destroyed.

Thanks, because of TFP and this forum I’ve stayed on top of my own pool. It’s actually been very easy to care for, but I test so often my numbers are never far off. After testing this pool I was not sure where to begin to get the results needed.

 

[zea3]

If they are going to follow your recommendations, do a 50/50 dilution of the CYA test so we have a good estimate of how much you should drain. The pucks need to go away. They are driving pH down and CYA up, resulting in a highly unpleasant pool! Once the CYA is in range we can look at everything else.

 

[Richard320]

You are seeing firsthand how acidic trichlor is.

Check out these photos Maintain your chemicals correctly