Needs alot of CH

[DrainingIsExpensive]

The biggest problem is very low soft water. In many areas the tap water has 0 CH so people constantly need to add CH. Adding 8-15 lbs a day of CH per day gets expensive but I can understand why she was doing it with the readings below as she was trying to get her CYA down and stopped using pucks which was keeping her CH up. I am not sure I have an answer for her as to how to keep CH high when you have soft tap and CH keeps creeping lower.

Her readings, taken today:
FC 4.5
CC 4.5
pH 8.0
TA 130
CH 200
CYA 120
Temp 67
CSI +.12

Maybe somebody can tell her how to get her CH up over 250 and stop having to put in 8-15 lbs of CH/day to maintain 200.

 

[Newdude]

Hey Draining !!! You posted this about 'her' in a guy's thread. And it didn't fit his thread at all so I moved it here as it seems you are asking for help for a friend.

How big is her pool that it needs 8 to 15 lbs of CH a day ? Is it monsoon season there ?

Cal-hypo (powdered shock) adds CH and FC if it's not particularly expensive by you.

 

[Mdragger88]

Is this a plaster pool?
It is impractical to maintain with cya of 120ppm. The fc is way too low now to be sanitary.
A ch of 200 is fine
The csi is fine

Calcium Saturation Index (CSI)

How is CSI calculated? Very simple – use our PoolMath tool. To ensure long plaster life and save money, click here to learn more.

www.troublefreepool.com

.... "Min FC" is 7.5% of the CYA level
= 9ppm for you
.... "Target FC" is 11.5% of the CYA level
= 14ppm for you
.... "Shock FC" is 40% of the CYA level
= 48ppm you
This pool needs a water exchange asap to get it sanitary.
You can then add back the amount of calcium you need to maintain proper csi if required.

Draining - Further Reading

www.google.com

 

[Dirk]

Pucks are a great convenience for many. The reasons to not use pucks are that one type adds too much CYA, and the other type adds too much CH. But if you need both CYA and FC, then use pucks! Have both pucks and liquid chlorine on hand. Use pucks until the target CYA is reached, then switch to liquid chlorine only. If CYA drops below the target, then go back to using pucks until it returns to target.

With a proper test kit, managing this MO would be pretty simple.

 

[mgtfp]

Are you talking about adding 8-15 lbs of calcium chloride per day? Every single day? All year long?

That sounds insane. How big is the pool?

My first thought was "massive leak and autofill". But that doesn't seem to fit the high CYA