Calcium Hypochclorite Shelf Life

[Mam262]

Hello,
Does Calcium Hypochlorite have a shelf life? With the shortage of bleach, I was considering using Calcium Hypochlorite instead. I have some that I bought 12-18 months ago.

Thank you,
Mike
Lansdale, PA

 

[mknauss]

If kept dry, nearly forever.

Be sure to test your CH and monitor it if you use substantial quantities of Cal Hypo. When it rains try doing some water exchange to control CH.

 

[mknauss]

Your signature shows you have a SWCG ???????????

 

[Mam262]

Thank you very much!!!

 

[Mam262]

Your signature shows you have a SWCG ???????????

I do have a salt water pool. I am going to be opening it in aa few weeks and usually use bleach to SLAM the pool at opening. With the shortage of bleach I was going to use the Cal Hypo instead.

 

[mknauss]

OK -- just be careful using Cal Hypo as it can create scale on the pool surface if not dissolved properly and if your pH / TA are in upper ranges.

Most are finding liquid chlorine with little issue. Walmart, Home Depot, Pool Stores, etc.

 

[Mam262]

OK -- just be careful using Cal Hypo as it can create scale on the pool surface if not dissolved properly and if your pH / TA are in upper ranges.

Most are finding liquid chlorine with little issue. Walmart, Home Depot, Pool Stores, etc.

Noted. Thanks again. I will keep looking for bleach. I have been checking in my area and most stores are sold out.

 

[mknauss]

Liquid chlorine. Household bleach is scarce. But few realize liquid chlorine is the same thing.

 

[Mam262]

Liquid chlorine. Household bleach is scarce. But few realize liquid chlorine is the same thing.

thank you again. I really appreciate it. I was looking for regular bleach.

 

[mknauss]

Where to find Liquid Chlorine

We want to help you with your pool and maintain your water. Help users find a quality source of Chlorine around them or find a source for your pool.

www.troublefreepool.com

Check this out. Might help.

 

[mmcwhorter]

I opened the spa early, about 2 weeks ago. Opening the pool on Friday this week. I used what little was left in a 25-pound pail of 3-year-old 73% Cal Hypo, worked just fine. I had only about 30 oz by volume left. I later found a really good deal on Amazon of 1 pound bags of same, as opposed to a large pail filled. I figured this would be a better way to buy and the cost per pound was surprisingly LESS than in the bulk pail. Arrived in 2 days, nice.