Iím on a 3rd season of my pool ownership. The first season I had a single speed pump and it was uneventful. The pool was pristinely clean, once a week I would use a robot-cleaner to clean the pool and that was it. I switched to slow speed filtering on my 2nd year.
This current season I had a problem with solar cover and after I got rid of it everything seemed to be fine, except few green spots on the liner. The chemistry is spot on and a friendly push with a brush would get rid of the green spots. The spots seemed to be powdery Ė I didnít actually had to brush it, I could simply push some water towards them and they would disappear with a poof..
I contemplated the idea that it couldíve been the pollen, but Iím pretty sure itís algae.
Aside from very light brushing every day or every other day, everything seemed to be fine.
My understanding is that with change from normal speed to slow speed filtering I lost some of the circulation that now allows for some spotty algae growth. I used to filter 5-6 hours on high and now I do 10-12 hours on low. So the turnaround is about the same, but the exist velocity for jest is lower.
My question is Ė is a normal routine for low speed filtering? I think some people brush all the time, but I didn't had a need for it before. I think filter time increase will not fix this, I simple have to brush here and then from now on.