4th season new troubles

[kate407]

Inground pool 15,500 gallons vinyl liner
Sand filter
Doheney pump

High acid in pool water!
Clear water good ph and alk
Have drained to just below skimmer and refilled many times still high acid
Where is acid coming from????

 

[mknauss]

Welcome to the forum!
Please post a complete set of pool water chemistry test results using your own test kit.
I suggest you read through Pool Care Basics - Trouble Free Pool and even look at a few of our videos TFP-TV - Trouble Free Pool