How accurate is my PH reading .... FC = 14

[ship of fools]

My pool finally cooled down here in upstate NY and i am getting ready to close ..... without even thinking about it i dumped the remainder of a 5 gallon jug of chlorine in and started scooping leaves etc out.

As i am getting it cleared up i decided to check the PH and it is at 8.2.

FC is 14
CC is .5 or less

As a general rule the PH was fairly stable all season and only crept up slightly all summer.

I haven't done much of anything with it since early September other than a gallon of bleach here and there and run the pump once a week.

Can i trust that reading and add MA?

 

[pwrstrk]

No. Your PH will read a false high with FC levels of 10 or above.

 

[ship of fools]

I was afraid i would hear that

In the meantime i searched on here and came to the same conclusion.

The only workaround seemed to possibly mix 50/50 with distilled water... is that worth doing?

Will FC still drop over the next week or so (pool temp is 50+-) and i can easily wait another week if needed.

 

[pwrstrk]

What is your PH level normally ?

 

[ship of fools]

What is your PH level normally ?

7.6 to maybe 7.8 or so

I had to add a small amount of MA once all summer.

I've waited this long so the water would cool (it stayed over 60 well into October) and i definitely don't need to rush it if i risk making a mistake.

 

[pwrstrk]

I don't think its a big deal. With your water temp low and a high FC level it's going to take a long time for the FC level to come down. Is the pool covered ? Might come down faster if it's not covered.

I wouldn't sweat it !

 

[JamesW]

Can you post all of your readings?

 

[ship of fools]

Can you post all of your readings?

Nope

I read up on the impact of high ph (i think it is in range anyway) and with a vinyl pool and no equipment hooked up it didn't seem like much of an issue.

So ... it's all closed up now