Comfirm my CH level reading is right

pmuvb

Well-known member
May 1, 2020
55
NC
Hi,

Tested my CH level, which I haven't done this year, and it says it's 150 ppm. This looks very low to me, is it possible for it drop that much?
I believe it was alright last year. According to Pool Calculator, I need to add 106 lb of Calcium Chloride to bring up CH to recommended
450 level.

I used my Taylor test twice to confirm the result. It supposed to change the color from red (it's actually more like pink) to blue. Could
someone take a look at the picture, is it the blue I am looking for?

I was testing CH last year in my first and newly acquired pool but CH was basically not changing at all, hence I slacked on CH test this year. Yeah,
that's how it happened. The last time I tested CH was probably late last fall.

All my other readings are good, it's only CH that I neglected:
FC 5.5
PH 7.6
CYA 40

TX
 

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Last edited:

mknauss

Mod Squad
TFP Expert
Bronze Supporter
May 3, 2014
43,998
Laughlin, NV
Pool Size
6000
Surface
Fiberglass
Chlorine
Salt Water Generator
SWG Type
Pentair Intellichlor IC-40
bring up CH to recommended
450 level.
No real need to take it that high. 300+ ppm should be sufficient.

Switch from liquid chlorine to cal hypo for chlorinating purposes.