Lately I've been getting a yellowish dirt build up on the bottom of my pool, not on the sides but kind of scattered, anywhere the return does not directly flow.
It wasn't there a month ago, I think June/July I only had to vacuum two or three times, now it seems I vaccum it up and then the next day or two It could use another vacuuming. It's almost like a sand.
My kids are not in it as much but seems like more build up.
I tested the water and my chlorine came back good, pH was about 7.5, and alk was 7.
Any suggestions
thanks
Barry