Moblaine's pool

[PoolDoc]

Just looked for your pool chart entry, and didn't see it. If you would, please complete our new Pool Chart form -- it takes about 30 seconds, but will save much more than that. This is not the same as the chemistry log.

Pool Chart Entry Form
Pool Chart Results

However, based on a 4 gal dose of 12% bleach, you'd expect about 18 ppm FC. The fact that you are showing 7.5 could mean:

• You have ammonia in the pool which can be VERY rapidly oxidized by chlorine, consuming a lot of chlorine in the process, OR
• You have old bleach, or bleach that was stored hot, and is now only about 5% bleach (quite common!), OR
• Your pool store has fresh bleach, but is diluting it. (Very easy to do, if they have their own bleach tank.)