Algae, pollen, filter?

[mccool83]

Gonna be kind of long one, but here goes. Around two weeks ago, I thought for sure I was dealing with pollen in the pool. Water was still pretty clear but the bottom of the pool was dirty/greenish yellow. I was able to get almost completely cleaned up with the combo of filter socks and adding some DE to the sand filter (the filter sock will would be full of green/yellow at the end of each day). Then came a couple of days of the motherloads of rain. Boom, I have a swamp.
Steps I have taken since:
removed plastic drop in steps and metal ladder
running robot as much as possible
brushing pool multiple times daily/vac when can
filter sock/DE
SLAM process

I have been doing this for over a week now. I have passed to overnight chlorine test for multiple days in a row. My pool is still cloudy/dull/green (pics should be attached) and every morning the bottom is still completely covered in something when I brush it. I have continued to SLAM since my pool isn't clear and also did a deep clean on my sand filter.
This morning as I was brushing and testing, my robot went up and covered my skimmer and unprimed my filter pump. When the pump came back to life, I was standing over the return in my shallow end. It appeared that what ever I have been brushing off the bottom of the pool came shooting out of the return.
Is my pool not clearing up because it's not filtering well enough? Do I continue to SLAM? Just looking for some guidance here. Here are my current numbers:
FC-22
CC-.5
CYA-45-50
TA-90
PH-7.8
Any help is appreciated and happy to provide any additional info. Thanks in advance!

 

[PoolStored]

Continue to slam.

How often do you backwash the filter?

 

[mccool83]

Continue to slam.

How often do you backwash the filter?

At least once, sometimes twice a day.

 

[PoolStored]

Continue to backwash, you might increase the frequency.

Does the pressure gauge work? Backwash and not pressure. When filter pressure rises 25%, backwash again.

How often are you testing and replacing FC?

 

[mccool83]

Continue to backwash, you might increase the frequency.

Does the pressure gauge work? Backwash and not pressure. When filter pressure rises 25%, backwash again.

How often are you testing and replacing FC?

I believe that the pressure gauge is working properly. It rises when adding the DE. If I don't add the DE, its seems as though pressure doesn't rise when filtering. If I backwash, the sight glass is very green even without the pressure raising the 25%.
I was adding testing FC every couple hours in the beginning when I could. Since I have been passing the overnight, I have just been adding what I have lost during the day.

 

[PoolStored]

Best you can do is backwash more often, especially with the DE. Some systems, the 25% rule just doesn't work.

Try 3-4x a day backwash....that may help get the stuff out of the filter. DE can be pretty efficient and load up the filter during SLAM. The fact it came out the return is a tell that you are not backwashing enough (or there is a problem with the filter, which I don't suspect yet).

Try backwashing more with DE and see if that helps.

 

[mccool83]

Best you can do is backwash more often, especially with the DE. Some systems, the 25% rule just doesn't work.

Try 3-4x a day backwash....that may help get the stuff out of the filter. DE can be pretty efficient and load up the filter during SLAM. The fact it came out the return is a tell that you are not backwashing enough (or there is a problem with the filter, which I don't suspect yet).

Try backwashing more with DE and see if that helps.

Thank you, will do!

Should I continue to stay a SLAM level as well?

 

[PoolStored]

Yes. Keep slam up until you pass all three criteria to end it.

 

[mccool83]

Bad news, I’m almost out of R-0871 and my delivery of new was moved to Saturday

 

[mccool83]

Happy to report that I had little to no debris on the bottom of the pool today. Pool is clearing up, can see the bottom of the deep end fairly easily now. Can’t do an ONCT till Saturday though.