Calcium

[waterbear]

There's a .pdf of the stuff here:

http://www.dow.com/webapps/lit/litor...0.pdf&pdf=true

If I get a moment, I'll look up what the ASTM that they conform to is composed of. I think there's enough info there for me to see if it's a safe product. If you can find a MSDS on "pool type" CaCl, we can compare the two and see how they match up.

Michael

check out this PDF a lot of info on calcium chloride
http://www.omri.org/calcium_chloride_final.pdf

[waterbear]

check out this PDF a lot of info on calcium chloride
http://www.omri.org/calcium_chloride_final.pdf

HERE IS THE INFO OFF OF THE DOW WEBSITE FOR POOL AND SPA APPLICATIONS:
http://www.dow.com/calcium/app/poolspa.htm

THEY LIST 2 PRODUCTS FOR THIS USE....
DOWFLAKE AND THEIR ANHYDROUS CALCIUM CHLORIDE MINI-PELLETS!

GUESS DOWFLAKE IS THE WINNER IF YOU DON'T WANT TO BUY IT AT A POOL STORE. I WOULD BET THAT MOST OF THE CALCIUM HARDNESS INCREASER SOLD IN POOL STORES IS JUST REPACKAGED DOWFLAKE!

[mwsmith2]

Cool, cool, that seals it for me. Now if I can only find that stuff.

Michael

[waterbear]

Cool, cool, that seals it for me. Now if I can only find that stuff.

Michael

Try lowes or home depot! I've seen it at one or the other! btw, I just read the Dow pdf on their calcium products
http://www.dow.com/PublishedLiteratu...romPage=GetDoc
and it seems that :
"DOWFLAKE 77–80% process grade
calcium chloride meets or exceeds
Food Chemicals Codex (FCC IV)
monograph for calcium chloride
dihydrate and complies with FDA
Good Manufacturing Guidelines.
It also meets the American Water
Works Association (AWWA) standard
B-550 and is Kosher certified."
I guess that means it's pretty pure! Heck, it's even Kosher!(two of my great aunts used to be cooks in the "Borscht Belt" in the Catskills and I remember them using calcium chloride in the brine when making pickles! So did my mother! I think it was to keep them crisp)

[zelmo]

Since so many have been helpful I thought I should give an update.

Home Depot and Lowes didn't have any de-icer left, but a smaller hardware store had several brands. The only drawback (or so I thought) was that they were all pellets - no flake. I looked at Dow's website and decided to buy the PELADOW that the store had because it seemed to be DOWFLAKE in a different form. Anybody want to explain the difference between dihydrate and monohydrate?

My worry had been that the pellets would take longer to disolve and they did, but it was only 5 minutes. Worked like a charm for 1/3 the price of the pool stores product.