Why not use liquid chorine instead of bleach ?

[KurtV]

Here's a pretty readable paper on sodium hypochlorite production and use. On about the thrid page, paragraph 2.4, it explains the breakdown process. Bottom line, as you double the strength you quadruple the breakdown rate.

http://www.odysseymanufacturing.com/bleach_information.doc

[CarlD]

I want to let you know that, contrary to what you and others may think, Canada is not a cold, freezing country. Just to prove my point, it's the middle of July and my pool water has reached its highest temperature so far this season, behold, it's a sizzling 72F. So there. And it may go even higher, it may reach 74F if we're lucky and the weather holds. Now that's hot my friend. So we may not need our polar-lined speedos this weekend. Heck I may even have to turn ON the AC in the car! So there.



Best regards,

Paul

72? 74? Ugh! That's COLD my friend! I'm too soft--I need a 3/4 wet suit. Water here is COOL at 85!

[chem geek]

According to Clifford White's Handbook of Chlorination, the half-life of 10% chlorine solution at 77 degrees (F) is 220 days which is not too bad. It is also my experience that if there is a decent turnover of chlorine bottles and they are kept out of the sun, then I tend to get properly concentrated chlorine from my local pool store. I get the expected increase in chlorine levels by adding an amount of chlorine based on the 10% level (the 10% is by weight of NaOCl while the 12% available chlorine is by weight of the HOCl you get by putting the chlorine in water).

[chem geek]

On my last post I was wrong about the 10%/12%. A 12.5% (by weight) solution of chlorine bleach (NaOCl) is actually considered to be 11.9% available chlorine because the standard is Cl2 gas at 100%. 12.5% * (70.906 g/mole Cl2) / (74.4 g/mole NaOCl) = 11.9%

[giroup01]

72? 74? Ugh! That's COLD my friend! I'm too soft--I need a 3/4 wet suit. Water here is COOL at 85!

LOL!! I'll do anything to get that 85! Heck, put some up on eBay and I'll buy!

[Chad-WL]

Just an update for you...
The Canadian supply of Purox is manufactured once per year, just before the spring time, and then it's stored... So if you're buying bottles in the end of summer, they're a few months old..

It will still work great though, it just drops down in content.

My father works for Colgate so I've been lucky enough to be getting mine supplied by the employee store, when ever I run low they have to get a few cases brought in from the warehouse because they don't stock it.

Chad

[CarlD]

LOL!! I'll do anything to get that 85! Heck, put some up on eBay and I'll buy!

OK. I'll freeze it for you and pack it in dry ice so it'll ship easier!


(G'nite, Gracie! )

[gonefishin]

I'm so happy...I finally found a good deal on bleach!


I just found out that we have a Water Treatment store near us that also sells a few pool supplies. They have underground tanks of chlorine that they sell to water treatment facilities. They say that there turn over is quite high (new fillings every month). They said that the strength of their chlorine coming in is 17% and that they keep all the tanks above 12%.

They have a $5.00 deposit (one time fee) for a 5.5gallon black container. The 5.5gallon refill is a little over $9.00.

The lady at the counter asked a few questions about the type of pool...how I test...How much stabilizer I had...and what type of chlorine I'm currently using. Once I told her I was using only regular bleach she seemed said..."oh, well you should be fine then".


I'm just so happy I found a nice deal on bleach. a bit over 9 bucks for a minimum of 12%...not bad
take care all
dan