an1vrsy
Bronze Supporter
- Jul 10, 2018
- 1,196
- Pool Size
- 26000
- Surface
- Plaster
- Chlorine
- Salt Water Generator
- SWG Type
- Pentair Intellichlor IC-60
We have had maybe 2” of rain, yes 2 inches, in the last year in my area of Las Vegas.
Appears neither PoolMate nor PuriTech brands are 100% calcium chloride either.
Use pool math app and the dihydrate option.Bit old that thread, but it just got reactivated and I noticed it for the first time.
Not sure if your conclusion above came from your calculations with Calcium Chloride and Calcium Chloride Dihydrate.
Just to clarify this: Calcium Chloride Dihydrate is still "pure" Calcium Chloride. Calcium Chloride gets hydrated when exposed to humidity. Even if you buy a bag of Calcium Chloride (anhydrous), it will turn at least partially into Calcium Chloride Dihydrate once the bag is opened.
Since the hydrated version is heavier on a molecular level because of the added H2O, you have to add more product by weight to add the same amount of Calcium.
For documentation sake,
My target is 450.
3/1/23 - CH was 220.
3/11 6pm - added 50 lbs of Snow Joe (red label)*
3/12 @noon - CH 310
3/15 @noon - added 50 lbs of SJ
3/16 @noon - CH 580 (unreliable)
4/12 - CH 490
4/24 - CH 500
(ran out of test drops)
6/23 - CH 450
6/23 - added 25 lbs SJ
6/29 - CH 480
7/4 - CH 450
7/9 - CH 400
If you use a 25ml sample, each drop is 2.5X less, or 10 each.How are you getting numbers that are not multiples of 25?
K-2006 kit.How are you getting numbers that are not multiples of 25? What test kit are you using?
Use pool math app and the dihydrate option.
So is calcium chloride in liquid form and cc dihydrate in solid form? Is that the difference?
My guess is 50# bags are harder for delivery drivers.I am going to pull the trigger on this ice melt for my pool. It happens to be the same exact ice melt I use for my sidewalk and driveway! I also have purchased other winter products from this website (i.e., snow blower).
I cannot find any 50lb bags, which is what I usually buy, but that has to be because its the middle of summer, and maybe Alaska is the only place in the US that has snow right now. At $17/25lb, this is a steal to increase Calcium Hardness.
The SDS is from the Snow Joe website and dated July 2019. I am not sure what the other 2.5% is...
Safety Data Sheet (SDS) Report
View attachment 512411
The link to the best price I have found is on Amazon Snow Joe AZ-25-CCP Pure Calcium Chloride Pellet Ice Melter, 25 lb Bag, White, though the product is available at Home Depot for about the same price and Walmart for about $2 more. Target is out of stock.
I used to either buy IN THE SWIM - 25 LB. PAIL CALCIUM HARDNESS INCREASER or Leslie's - Hardness Plus for Calcium Hardness, 25 lbs., both are about 3X price - hover around $57-60. Unfortunately, neither site provided a SDS.