Pool Turned Brown Again!!

Racingpools

Active member
Apr 29, 2021
26
Orlando, FL
For the next 24 hrs or so, I'd just continue to maintain the FC of 20 as best as you can consistently and keep the filters stuffed with fresh paper towels since those seem to be working better. :goodjob:
I decided to wait til tomorrow to SLAM because I don’t have the availability to watch the FC levels today.
In the mean time, these are some pics of what I pulled from the skimmer box. Iron or Algae?
 

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Texas Splash

Mod Squad
TFP Expert
LifeTime Supporter
Wow. I've gotta go with iron, but it looks more like an oil slick in there. That is crazy. And all of that just from the fill water and reaction on Day 3 when they added chlorine? I'm not ruling-out that you have an algae issue by now since a month has gone by, but algae won't look like that by itself. Quite the cocktail. Tomorrow - Friday should tell us what to expect and what actions are best going forward. Once you are able to maintain the proper SLAM level, really brush that pool well, and monitor the rags & paper towels, we should see clear changes. The proper SLAM level should help to make the water clear, even if it is brown. At the same time, the SLAM level FC should help to collect more iron in the filters. If by the weekend you don't see that transition, it may be time to consider water replacement. Do the best you can with available time and keep us posted.
 
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Racingpools

Active member
Apr 29, 2021
26
Orlando, FL
SLAM in progress. Pool is already starting to lighten up and I can see the floor of the shallow end for the first time in 3 weeks. Getting a nice clear ice tea color going on (camera makes it look more green than it actually is)- definitely taking some staining but that can be addressed later.

I threw in a couple pics of what’s going on. This is what my filter looks like every 12 hours with the filter fiber stuff. Pool store owner recommended skipping the filter fiber stuff so it doesn’t block up so fast, will see what the results are in 12 hours.

You can see from my bucket of polyfil that the paper and filter fiber is doing all the work and nothing is catching in the polyfil for some reason. The saga continues.
 

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YippeeSkippy

Mod Squad
LifeTime Supporter
Jan 17, 2012
16,000
Evans, Georgia
Have you ever added clarifier or FLOC to that water? I've never seen a filter so solidly packed with....stuff?

That the polyfil isn't capturing anything makes me wonder if there are variations in types of polyfil?? Cotton vs polyester vs ??? Its just odd.

Maddie :flower:
 

Racingpools

Active member
Apr 29, 2021
26
Orlando, FL
Have you ever added clarifier or FLOC to that water? I've never seen a filter so solidly packed with....stuff?

That the polyfil isn't capturing anything makes me wonder if there are variations in types of polyfil?? Cotton vs polyester vs ??? Its just odd.

Maddie :flower:
I haven't tried flocculant yet but it's getting higher on my list. I was holding off because I read it can block things up? Any experience with this? If everything sinks, will the automatic pool cleaner scoop it up? I don't have a vacuum to waste option.

The filter looks so packed because that's the filter fiber stuff in there, which is doing the heavy lifting catching all what I hope is iron.

There has to be a difference like you said, but I did use the original Polyfil brand that everyone has used in other posts. I'm going to try some other kind of stuffing, maybe shredded foam or some kind of paper based stuffing. Will report back!
 

Racingpools

Active member
Apr 29, 2021
26
Orlando, FL
Starting to make progress with things, the pool is definitely getting lighter every day but the staining is still worsening.

I found that shredded foam was most effective but I’ve switched to the big blue filter with the 0.5 micron string wound polypropylene filter, hooked up on my submersible pump and it’s pulling about 5gpm so will probably take a couple of days to turnover the whole pool… we’ll see how it does.

I’m holding the pool at approx 20ppm FC until I get all 3 criteria in the SLAM process which I’ll check again overnight. It’s time to start thinking about the stain removal process, does anyone have any tips for this? It’s not ideal to do ascorbic acid in summer in FL… TIA!
 

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Snoobug

Silver Supporter
Jun 2, 2020
232
Iowa
Pool Size
19500
Surface
Vinyl
Chlorine
Liquid Chlorine
Starting to make progress with things, the pool is definitely getting lighter every day but the staining is still worsening.

I found that shredded foam was most effective but I’ve switched to the big blue filter with the 0.5 micron string wound polypropylene filter, hooked up on my submersible pump and it’s pulling about 5gpm so will probably take a couple of days to turnover the whole pool… we’ll see how it does.

I’m holding the pool at approx 20ppm FC until I get all 3 criteria in the SLAM process which I’ll check again overnight. It’s time to start thinking about the stain removal process, does anyone have any tips for this? It’s not ideal to do ascorbic acid in summer in FL… TIA!
Tell me how this works for you. I ordered the same pentek filter house and a 0.5 micron filter.
 
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Racingpools

Active member
Apr 29, 2021
26
Orlando, FL
How is the pool looking? Can you post a pic?
It’s looking great! I don’t know how much is exclusively due to the big blue but I’ve been battling this issue for a month and the two pictures is the difference from about 24hours of use.
I’ve been keeping the FC at 20+ppm to get as much of the iron to oxidize and just accepting the staining until I run the ascorbic acid treatment. So far so good.
 

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