Severe cloudiness after killing algae

[dreaming nomad]

Hi all, long time lurker, first time poster...

I've been trying to clean this pool for 9 days. It was neglected for years. There was a huge amount of algae/leaves at the bottom. Not the normal kind of slimy algae - this stuff was so old it had consolidated into tough mats several inches thick.

After finally getting everything off the pool floor, (took days), I adjusted the alkalinity and pH and began shocking it with liquid chlorine. I've used 30 gallons of 10% sodium hypo so far... which is a lot more than I normally need for a green pool.

It's finally holding fc overnight, and I'm pretty sure it's all dead, but the water just will not clear up. I ran the filter for several days, backwashing every day, but it never improved. I used some hth drop out flocculant, recirculated a few hours then let it sit for 2 days.... It's still in the same condition - the flocculant did not work.

What the heck?

Fc: 14
Cc: <0.2ppm
pH: 7.1
Alk: 60
Ch: 170
Cya: 0
Phosphates: 0
Tds: 495

 

[mknauss]

Welcome to the forum!
You need to follow the SLAM Process. To do that, you need a proper test kit. I suggest the TF-100/Pro or Taylor K2006C. A proper test kit is needed to get the accurate water chemistry results needed to follow the TFP protocols.

While you are waiting on your test kit, add 5 ppm FC worth of liquid chlorine / plain bleach to your pool each evening with the pump running. This will replenish the FC lost each day to the sun and also inhibit any algae in the water from growing further.
I suggest you read through Pool Care Basics - Trouble Free Pool and even look at a few of our videos TFP-TV - Trouble Free Pool

 

[dreaming nomad]

I have the taylor k2006c and i have slammed it. I super slammed it. Took 30 gallons before it would hold fc overnight, but its holding now. Just still super cloudy for some reason and i can't figure it out.

 

[mknauss]

Great. You had not said what kit you used nor do you have a signature for us to know.

Continue the SLAM Process until you pass the three criteria.

 

[dreaming nomad]

Great. You had not said what kit you used nor do you have a signature for us to know.

Continue the SLAM Process until you pass the three criteria.

Getting a taylor test kit and slamming isn't the solution to every problem..... At this point, I think it's a filtration issue. I took samples of water (in Gatorade bottles) directly from the pool, directly after leaving the sand filter, and one of tap water. Whatever is causing the cloudiness, it's clearly not being caught by the filter. I think I'm going to try replacing the sand... something I would normally think was pointless..... Its been about 2 weeks, there is no living algae in the pool, and the cloudiness has not improved at all. If that doesnt work honestly I can't think of anything else to do but replace the water.

 

[proavia]

Based on the test results you posted, you didn't actually follow the SLAM Process.
Your results indicate a CYA of 0. The SLAM Process indicates the CYA should be a minimum of 30.

As well, "super slamming" and flocculant aren't part of the SLAM Process.

How did you check for phosphates and TDS?

After using the floc, did you vacuum to filter or to waste?

What were the results of your latest Overnight Chlorine Loss Test?

Did you pass all three criteria to successfully exit the SLAM Process?