Hey guys, I have a question. I buy my bleach at Sam's Club (Chlorox) in bulk and have noticed for the last 4-5 months that every night when I add bleach to my pool, you literally see it go into the water as a clear color and about two feet down it starts blooming out in a white cloud.
Maybe it's more pronounced because I usually pour it into the deep end next to the pool light. I also poured the bleach in the shallow end next to that light and it did the same thing. I don't think it's a bad batch of bleach since it's been doing this for quite a while. The bleach cloud always dissipates and disappears within 10-20 minutes.
The water is beautiful and I check my FC and PH and add bleach every night - religiously. Even though I always pass the overnight test, I shocked it last week to see if it would stop the bleach from doing this, but it still does it. I kept my FC up at 28 overnight wondering if it was some kind of algae I couldn't see. I had dumped 3 bottles of bleach in and it was like a white cloud took over the pool. I could see the flow of water as the bleach bloom moved across the bottom of the pool - it was actually kind of cool watching it. Pool turned completely cloudy - except the spa was totally clear.
Added more bleach to the spa and the same thing happened. Ran my pump on 2800rmps the whole night and the pool was crystal clear in the morning and the FC didn't drop at all. I didn't worry about keeping the FC up high at shock level since I must not have an algae problem. Why does the water cloud when adding bleach?
Luckily it goes away quickly, but I just want to make sure I don't have a hidden problem lurking somewhere waiting to raise it's ugly head. I do use Jack's Magic Magenta (only when I add water to the pool) because we have well water with lots of metals and ProTeam's Microfloc Clarifier simply because I think it makes the pool water look amazing. Do you think there might be some kind of chemical interaction with the bleach or is it just the bleach oxidizing organics??
Just curious if anyone else has experienced the bleach cloud thing and if anyone knows what causes it? We do have trees and crape myrtles dropping all kinds of organics in the pool daily.
Water test last night...
FC 5.5, then added bleach, 1 hour later FC 11.5
CYA 60 (checked last Sunday)
Borates 50-80 (it's the best I can tell from the test strip)
Pool Temp 86