How to factor concentration into chlorine cost?

[Shebsfort]

If Walmart has pool chlorine 10% at 3.64/gal, and household bleach 6% at 2.60/gal, how do I do the math to figure out which one is the most cost effective? Any insight to what a good price is on a gallon of chlorine for future reference? My test kit should be here tomorrow so that I can quit throwing my money away at the pool stores. Planning on doing a SLAM asap and deep cleaning my sand filter.

Pool hasn't been clear yet this year although levels seem to be fine. I was sold on clarifier, algae preventative, and floc "to clean the filter until I can replace the sand" (now that I'm reading here I'm not happy about that). I probably shouldn't get into all the gory details.

Thanks in advance.

 

[jblizzle]

Download the Pool Math app.

In it is a bleach calculation comparison tool. Allows you to enter the volume, strength and price to figure out which is the best deal.

Or here is an online tools written by a member: Liquid Chlorine Cost Calculator

 

[Shebsfort]

Awesome, got it! thanks!

 

[sccm_sysadmin]

If you don't have access to that website while out and about, it's still fairly simple calculation: you want dollars per oz. of chlorine.

Divide the price by (concentration * total size of jug in ounces)

Ex: $3.64 / (.1 * 128oz) = 28.4 cents per ounce of chlorine for the 10% stuff, or $2.60 / (.06 * 121oz) = 35.8-cents per ounce of chorine for the 6% stuff, assuming a 121oz jug. The 10% liquid is a much better buy assuming you'll use it in a reasonable timeframe.