HDX vs Sani-Chlor Liquid chlorinator

[vadimw]

Hello,
In my area there is a Sani-Chlor Liquid chlorinator, which costs $10 per gallon, sold by Leslie's, and there is HDX chlorinator in Home Depot costs $5 pe gallon. What is the difference? Does it worth the extra price.
Things coming to mind are: limited shelf life. Perhaps, those in Home Depot are less effective because of long shelf life in the store?

 

[Texas Splash]

What is the difference?

If you are comparing the HASA liquid to the HD liquid (per gallon), I believe the HASA is 12.5% strength versus the 10% from HD. But you might ask to confirm. That would result in a slightly higher cost.

 

[vadimw]

If you are comparing the HASA liquid to the HD liquid (per gallon), I believe the HASA is 12.5% strength versus the 10% from HD. But you might ask to confirm. That would result in a slightly higher cost.

It is 2 times more expensive. To be equivalent it should have 20%

 

[Texas Splash]

It is 2 times more expensive. To be equivalent it should have 20%

Ha. That price escalated quickly.

 

[DrewLG]

Perhaps, those in Home Depot are less effective because of long shelf life in the store?

Chlorine Date Code Decoder - Further Reading

 

[ccbill]

Price comparison

 

[DrewLG]

Those calculations aren't exactly right, since the label percentages aren't exactly by volume. But the general relationship between the 10% price and the 12.5% price is basically accurate.

 

[JoyfulNoise]

And just remember that 12.5% is a lot less shelf stable than 10%. Unless the 12.5% is really, really fresh, like they manufactured it yesterday, then in 30 days the 12.5% will be closer to 9%. So if the Sani-Chlor is old, you're basically paying double the price for the same product.

 

[SecoSteve]

Leslie's is a pool store and ALL their products are marked up substantially. When I used to use tablets, I could get 50lbs online for about $100, now I saw an ad yesterday from Leslie's for 20lbs for $130. Leslie must have a lavish lifestyle!

 

[reggiehammond]

Leslie's is a pool store and ALL their products are marked up substantially. When I used to use tablets, I could get 50lbs online for about $100, now I saw an ad yesterday from Leslie's for 20lbs for $130. Leslie must have a lavish lifestyle!

Tabs have jumped in price substantially over past few years.
In The Swim used to be one of the cheapest, now has 50lbs of 3" tabs for $230.

 

[jesse-99]

And just remember that 12.5% is a lot less shelf stable than 10%. Unless the 12.5% is really, really fresh, like they manufactured it yesterday, then in 30 days the 12.5% will be closer to 9%. So if the Sani-Chlor is old, you're basically paying double the price for the same product.

Wow, I never knew that liquid chlorine had a shelf line that reduced its effectiveness. Maybe that's when when I started up my pool this August (delayed from plaster) and I used some leftover 12.5% chlorine I had from last year, it never seemed to raise the FC as high as I anticipated base on pool math. So it doesn't do much good to keep alot of chlorine in reserve at the house?

 

[JoyfulNoise]

So it doesn't do much good to keep alot of chlorine in reserve at the house?

Nope.

All sodium hypochlorite solutions degrade with time and temperature. That’s why it’s incredibly important to know how to read date codes and to know how a retail store is storing it. Many of the big box hardware stores put their chlorine out in the garden areas where it’s subject to high heat all day. That increases the rate of degradation.

Interestingly enough I was at a local hardware store today and I saw their shelf of LC in their pool section. Every gallon jug had “22080” as the date code. That stands for “80th day of 2022” …. March 21st!! All of that liquid chlorine was nearly 6 months old!! It was bottled at 10% but at 6 months is likely closer to 6%. And it was $5/gallon.

You have to be really careful with chlorinating liquid purchasing.