worst pool opening yet

[mknauss]

CC of less than 1 is of no consequence.

You have a liner pool. And no heater. Your CH level on the low side is of no consequence. You do not need to add calcium, unless your pool water foams. That is a sign of very low CH.

 

[lawson23]

I just bought one for the first time this season. I bought this one (pH Meter) from TFTestKits.net where I also buy the reagents.

Of course the meter is no longer available! I missed out I guess.