Pool noob that is getting a pool with the purchase of foreclosed house. Pool specs are in my signature.
Pool was dark, swampy green with no knowledge of how long it had been that way. Bank had the pool drained and let it sit that way (in hot Texas sun) for about 5 days They say it was acid washed. Pool was refilled and still had large dark algae stains about 1' below the water around most of the pool.
Week later the pool was swamp green again. Seems they came out and put liquid chlorine in because 2 hours later it was clear (although stains remain).
We are close to closing on this house and I am trying to get a handle on the pool issues. I've dealt with Leslie's Pool. I've used about 7 packs of Super Shock and 1 pack of water conditioner over the course of 3 weeks. Floating 3" Jumbo Tabs in the floaters.
I run the filter non-stop. I leave the Polaris running most days. I've backwashed the filter several times when the PSI rises from 5psi to around 12psi (which greatly helps the circulation). I continue to scrub the walls with a vinyl/metal brush. I just started using a leaf bagger on the bottom (although I currently can't see what I'm doing...too cloudy).
The algae spots had also grown and were slimy to the touch. That's when I learned about the BBB method here last night and promptly put 9 Gallon jugs of Walmart Great Value Bleach (6%) in last night. My current test kit (to soon be replaced with the TFP one) is a basic Chlorine/PH kit. It only tests Chlorine up to 5ppm. My PH tested at 7.4.
I took a water sample to Leslie's to get all my readings to post here. He said 'he couldn't read above 5ppm and I should bring it down.' I said 'But, don't I need to have my chlorine level high to kill the algae?' He said, 'No...some algae thrives on high chlorine.'
I went in thinking I needed to keep my FC in the 20ppm range for a few days to hopefully get rid of these dark algae stains on the side and get the pool under control. Well, I don't trust Leslie's anymore to guide me in the right direction (without just trying to sell me something) and vowed to never return!
Right now the water is white/blue cloudy and I can still smell the chlorine from the bleach.
I'll get my readings up ASAP...but in the meantime wonder: 1) Am I on the right track with wanting to keep my FC level at the 20ppm level? 2) Will these black stains on the side ever come off?