dirty pool bottom

Hi everyone. I am a renter and my pool service is included in my rent. My pool guy’s not really good. The pools usually pretty dirty to be honest with you but lately I’ve been getting this weird dust on the bottom of the pool even after I vacuum it the next day it’s there anyone have a idea what...

Looking for low cost way remove fine silt off bottom of in-ground pool since Hayward DE panel filter is not removing it? Can I rent equipment? Don’t mind loosing some water for this task. texasphil.