Ok, folks... got an algae problem... it struck me yesterday like I never expected.
Soooooo here's the back story... got my TF100... everything is hunky dory... crystal clear water...
Thursday the 3rd comes around, I add my daily dose of sodium hypochloride which is usually about 16oz (Red Solo Cup! I fill You Up!)
Next Day.... the 4th swimming for about 3 hours with a small bather load of 3 persons... after swimming I give the pool a double dose... 32oz
Next Day.... a repeat of the 4th... and Sunday the 5th it's just me and my better half for about 1 hour before the rain comes.
So after that I added another 32oz... at this point the pools is a litttttle cloudy...
Also, we had massive amounts of rain over the 4th weekend. Finally on Sunday BEFORE I added my doses of bleach I had to drain off LOTSA pool water, like a good 6 inches. The pool was really full from the last rainstorm it lasted about all day. I added my bleach and off to bed we went. This was at like 8:30PM.
Anyways... fast forward to Monday afternoon... I come home, check on my beloved pool hoping to see my cloudiness was gone after running the pump overnight and during the day... and what do I see???? GREEN SLIME ON THE POOL FLOOR!!! <GASP>
Immediately I break out the TF100 and run some tests:
FC = 3
CYA = 60!!!!! WHA WHA WHAT!!?!?! Last check it was at 30ish...
I was in such shock that I did not even check my PH... Doh!!
So I grab three bottles of bleach after hitting the pool calc and SLAM chart... and go on the attack!
The chart tells me I need 24 FC for SLAM and that requires that amount.
I grab my pool brush and scrub the floor and sides after I put one bottle in. Then I add the other two and scrub some more.
Fast forward to the next morning, I left the pump running, and I come out this AM. Walking to the pool I think surely we have all but defeated the monster... GASP!!! NO!!! It's back! (but not as bad)
So I test my levels and re-chlorinate this AM (Needed another bottle this time.) Scrub a dub dub... again...
And here we are. My neighbor is going to add another jug at noon for me.
My question does not have to do with the process so much as it has to do with has anyone seen this before?
My algae bloom was like wisps of green on the pool floor.... when I brush it dissipates into a cloud... is this normal algae?
Am I dealing with some sort of unique strain... ? Is there anything I should know? I mean seriously...
Admittedly I did not test my FC levels every day over the weekend, so I may have under dosed, and my CYA is obviously higher than the amount of stabilizer I thought I calculated.
I have also been back washing LIKE CRAZY due to the rain (water levels) so the CYA would have probably been higher than it is now.
So I'm guessing what happened is:
- I added to much CYA (no, I quit using pucks weeks ago.)
- Did not daily test FC and my guesstimates for my bleach levels were not accurate by a long shot.
- and probably needed to add more than my normal target FC due to rain and July 4th bathers???
I guess that's really my question there... well that and the algae question.
I would have thought that the overnight SLAMMING would have really beat it down...
Ahhhhh, and there is one other factor... I wanted to inspect my sand filter sand level on Sunday. When I took the top off the tube and "fingers" came up out of the sand... suction... so I had to dump my sand into a bucket, remove the fingers, reinstall, and rinse my sand, put it back in and then I did a long rinse and back wash and rinse, and went back to filter, when I did that all seemed good. But I can say the water in the filter had a green tinge to it... is there a way to keep that down? Can I put some bleach in my skimmer, say maybe a cup full to keep the filter squeaky clean so to speak? Could the algae sprung to life from me having to disturb the sand in my sand filter?
I know it's a lot to take in... I'm going to keep up the slam, and do more testing as soon as I get home tonight to see where I'm at.
I guess in the future I need to take extra precautions when the weather and bathers are out to eat up my FC.
I had been doing so well....