Pollen, dirt, or algae?

[remixmark]

FC: 4.5
CC: 0
PA: 7.6
TA: 90
CYA: 55
FC was 5 last night and I ran the pump overnight w/ the SWCG off.

Our water is a bit murky and we have a fine yellowish powder in the water. It's been like this for a week or so. Do you guys think it's pollen or should I SLAM? SLAMing didn't make sense as my numbers didn't warrant it, but I've backwashed and rinsed my sand filter last night and things look the same (still bad) this morning.

Here's some pix and a video of my swimout as I brushed the fine yellow stuff off of it:

https://imgur.com/a/VsQgsez

 

[ajw22]

When was the last time your sand filter was opened up and deep cleaned?

Sand Filter Use and Care - Further Reading

www.troublefreepool.com

 

[remixmark]

When was the last time your sand filter was opened up and deep cleaned?

Sand Filter Use and Care - Further Reading

www.troublefreepool.com

I've backwashed it three times in the past month just to be sure. However, I have not changed the sand out since it was installed in 2017. I started SLAMing my pool yesterday and the algea color is already gone, now it's just cloudy. I'm guessing I had yellow algea.

 

[ajw22]

Deep Cleaning a Sand Filter

This post will walk you through the anatomy of a sand filter, and then provide a video at the end for how to deep clean your sand filter. The filter used in the photos and videos is a Hayward S180T top mount sand filter. The images are of a similar filter. Obviously not all filters are...

www.troublefreepool.com

 

[remixmark]

Deep Cleaning a Sand Filter

This post will walk you through the anatomy of a sand filter, and then provide a video at the end for how to deep clean your sand filter. The filter used in the photos and videos is a Hayward S180T top mount sand filter. The images are of a similar filter. Obviously not all filters are...

www.troublefreepool.com

Thanks, but I just slammed it as it appeared to me yellow algae. It’s back to crystal clear now