View Full Version : old basic bleach calculator
Oclat
06-28-2010, 10:55 PM
I have new computer & remember an older basic bleach calculator. Does anyone have a link to it as the new one is not user friendly or I am just cannot figure it out. With the old one, you just inserted your gallons and % chorine bleach and presto.
Thanks
waterbear
06-28-2010, 11:31 PM
You are referring to bleachcalc by mwsmith. I still use it all the time. The only caution is the borate section is not accurate. There is an error in the programming.
There is a working link in the second post in this thread (chem geek's post)
http://www.poolforum.com/pf2/showthread.php?t=4735
CarlD
06-29-2010, 08:22 AM
I do it manually one of two ways:
Formal:
(1,000,000/pool gallons) * bleach concentration * Gallons of bleach = FC added to pool
Bleach concentration--if it's 6% bleach use .06, if 12.5%, use .125, if 5.25%, use .0525, etc.
If you use liters then use liters in BOTH places as Pool Liters and Liters of Bleach and it works the same.
Informal:
Or use the simple Rule of Thumb:
1 gallon adds exactly its percentage t0 10,000 gallons of water.
So... 1 gallon of 6% adds 6ppm to 10,000 gallons.
If you have 20,000 gallons, then 1 gallon of 6% only adds 3 ppm of FC.
1 gallon of 12.5% adds 12.5ppm to 10,000 gallons.
3 quarts of 6% adds only 4.5ppm to 10,000 gallons.
Adjust accordingly, but I can usually do it in my head this way.
chem geek
06-29-2010, 11:33 AM
Here's the BleachCalc link directly:
BleachCalc262.exe (http://richardfalk.home.comcast.net/pool/BleachCalc262.exe)
Don't forget that you can also use The Pool Calculator (http://www.thepoolcalculator.com/) either online or saved to your computer offline or as an iPhone application (you pay for the latter).
PoolDoc
06-29-2010, 11:57 AM
The link Richard gave was to a post in archive section, which is only accessible to mods and "lifetimes". Most of the posts there are throwaways, but they are there so they can be checked first -- like this one.
That post is probably a throwaway now that Richard has put links here.
Deleting all the "I can't see it" comments.
Ben