Just to make things more confusing, Clorox Regular bleach is now 6% (at least where I live). But it does seem that other brands have Regular at 5.25% and some even lower while their Ultra is 6%. When possible, see if the percentage is on the bottle and always use unscented when using bleach.
Richard
That's a great price. I always use wal-mart ultra bleach, and it's $1.28 around here too.
Check the prices of the 12.5% stuff at the pool store. Sometimes that's the best buy. One in my area (ok the one I work at!) sell the 2.5 gallon carboy for $3.99 for a refill. (There is a one time $5.99 charge for the carboy and then you just bring the empty back and pick up a new one.) That's the equvalent of slightly more than 5 gallons of ultra bleach for $4! Dosing is easier also. 1 oz raises 1000 gallons 1 ppm FC so if you have a 16,000 gallon pool each 16 oz. (1 pint) will raise it 1 ppm or if you have a 22,000 gallon pool each 22 oz will raise it 1 ppm, etc.
Retired pool store and commercial pool maintenance guy.
I buy my liquid chlorine in >12% form and get 5 gallons for $9.00. But I have to drive a little bit to get it.
Although I couldn't pass up the deal one of the grocery stores had it for $.79 a gallon of 5.25% solution. I bought all the bottles they hadCome to think of it...I should check back and see if they have any more
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take care,
dan