Calcium hardness, vinyl pool, and Raypak heater

[richardc]

I understand that low calcium levels are not an issue for vinyl pools. My test indicated a score of 100 ppm, and Raypak recommends a level of 200 to 400. Pool math indicated adding a great deal of calcium chloride, about 577 ounces to bring the level up to 250 ppm. That is close to 100 pounds of chemical. is this recommended? Am I crazy? Thank you

As an aside my TA is 170 and I am working on lowering it a level under 120.

 

[YippeeSkippy]

That's OUNCES, son.. not pounds!! <whew!>

I just checked on PoolMath, and to go from 100ppm to 200ppm is 385 ounces of calcium chloride (or 510 ounces of calcium chloride dihydrate). And that is by weight, not measurement. So about 24 pounds.

https://www.amazon.com/Puri-Tech-Calcium-Hardness-Increaser/dp/B012B9HU8W/ref=sr_1_3?ie=UTF8&qid=1526827658&sr=8-3&keywords=calcium+hardness+for+pool&dpID=51UMmbm5nxL&preST=_SY300_QL70_&dpSrc=srch

I use my diet scale for chemicals.

Maddie

 

[richardc]

That's OUNCES, son.. not pounds!! <whew!>

I just checked on PoolMath, and to go from 100ppm to 200ppm is 385 ounces of calcium chloride (or 510 ounces of calcium chloride dihydrate). And that is by weight, not measurement. So about 24 pounds.

https://www.amazon.com/Puri-Tech-Ca...pID=51UMmbm5nxL&preST=_SY300_QL70_&dpSrc=srch

I use my diet scale for chemicals.

Maddie

You are correct, my mistake on the math ! Thank you

 

[kabutotx]

Best thing is to ignore their water recommendations and use TFPs. They are generic recommendations. The biggest impact to a heater are pH and your CSI. Keep those in range and you are good.

 

[splashpad]

Best thing is to ignore their water recommendations and use TFPs. They are generic recommendations. The biggest impact to a heater are pH and your CSI. Keep those in range and you are good.

Agreed!