So this year, I have just been lazy. A lot of work with a little time to play hasn't helped in the situation. Anyhow, we went on vacation for a week. My DW suggested we throw a couple pucks in the pool, but upon my laziness, I just dumped a couple jugs of bleach in, thinking I could make it a week, and shock when I came back. You see, I have never had a full blown algae bloom in my 3 years of owning the pool, therefore I guess I just took it for granted. Well this past Sat. I came home to a nice dark green looking pool. Of course I was getting the "I told you so speech from my DW "I went to wal-mart and bought all of the household products I needed to get it balanced right and to battle the algae. After dropping about $60 on bleach, dry acid, CYA, & baking soda, I went home and ran my numbers:
Algae - Everywhere
So I dumped a bunch of bleach, didn't really care about the exact amounts. I knew 3 jugs would get it to about where it should be + some. I think I was somewhere in the 18-19ppm range once I checked again. I flipped the switch to the pump to let that simmer for awhile, came back poured another jug or 2 in, as well as added several pounds of dry acid and 5-6 lbs of CYA, & 5 lbs of NaHCO3. My dilemma was the DW had a party planned for Monday I figured there was no way that was going to happen. I left the pump running all night, frequently backwashing. I checked TC levels and added bleach as needed. The pool was still green on Sunday, but was showing signs of algae death.
By Sunday evening, it was a light green, and I told my wife it would take a miracle to be able to go swimming on Monday. Morning rolled around, and the pool was completely blue, but you couldn't see more than a foot below the surface. Now I had dead algae to deal with. I knew there was no more algae growth after nuking the pool for 2 days. My numbers suggested it too, when I didn't lose any chlorine overnight. At 6am my DW went to walmart and picked up some clarifier, which I have never used before. But after looking at it, its just a sticky, liquid plastic - so should clump the dead algae together to make it easier to filter. I put a little more in than it called for, and by 3pm, I had a halfway clear pool.
There was no way I was keeping a dozen kids out of that pool. My worry now was the pool had been nuked and chlorine levels were at shock levels, but after reading some posts on here, I realized it was ok especially since the temps were in the upper 90's. All in all it was a great day for everyone.
Oh yeah, by Tue. the pool was the clearest it has been all summer. My numbers looked perfect.
Algae - Dead and filtered
Thanks TFP folks and the Pool Calculator. I don't know where I would be without this site!