When Do You Need To Change The Sand In Your Above Ground Sand Filter
https://swimmingpoolsandfilter155851943.wordpress.com/2019/06/16/best-above-ground-pool-intex-sand-filter/
Inspect the filter to find out whether it's clogged. A sand filter is made up of hollow tank on a stand that is high in sand filter for aboveground pool sand. Sand filters will be likely the very frequent sort