Brown dirt in pool

[Emkrw]

I keep having this brown dirt appear in my pool. We have tried vacuuming it to waste but it comes back the next day. It settles in the seams of the pool liner. I have kept my chlorine at a 6 (cya at 30) for the last 4 days. It does not seem to be doing anything. It poofs when brushed.
does anyone know what this is or how to get rid of it?

 

[Texas Splash]

The key is to be sure if that brown is dirt or algae. Both will "poof" when brushed, but algae might feel a bit more slimy to the touch. Dirt should have a small grit to it. You can also do an Overnight Chlorine Loss Test using a TF-100 or Taylor K-2006C test kit. Your signature shows test strips, so if that's all you have, then your chemical levels might be off which could lead to algae. Hard to know without a full set of test results from a TF-100 or Taylor K-2006C. To be fair, it has been quite windy down here around S.A., so light dust can easily build up around areas of the pool, especially seams.

 

[Emkrw]

The key is to be sure if that brown is dirt or algae. Both will "poof" when brushed, but algae might feel a bit more slimy to the touch. Dirt should have a small grit to it. You can also do an Overnight Chlorine Loss Test using a TF-100 or Taylor K-2006C test kit. Your signature shows test strips, so if that's all you have, then your chemical levels might be off which could lead to algae. Hard to know without a full set of test results from a TF-100 or Taylor K-2006C. To be fair, it has been quite windy down here around S.A., so light dust can easily build up around areas of the pool, especially seams.

Ok. Thanks. I switched to take k-2006 this year so I could get more accurate results. I don’t seem to be losing chlorine.

 

[Emkrw]

Ok. Thanks. I switched to take k-2006 this year so I could get more accurate results. I don’t seem to be losing chlorine.

When I vacuum it to waste it is very brown as it passes through the glass.

 

[Texas Splash]

Might just be seasonal or from the wind then. More storms for us this week. Have you ever deep cleaned the sand? That might be something to consider if you've never done it before or if the sand is 2-3 seasons old.

 

[Emkrw]

Might just be seasonal or from the wind then. More storms for us this week. Have you ever deep cleaned the sand? That might be something to consider if you've never done it before or if the sand is 2-3 seasons old.

Thanks!!! I just replaced the sand and am worried there might be something wrong with the pump possibly.