PFS actually makes maintenance easier, because debris sits on top of it, and is easily vacuumed off.
Play sand is too light and often gets sucked up while vacuuming, until it compacts, and forms a sort of cement.
PFS is a heavier grade in order to be backwashed.
I've been using it for at least 20 years, and never had problems.
Play sand is too light and often gets sucked up while vacuuming, until it compacts, and forms a sort of cement.
PFS is a heavier grade in order to be backwashed.
I've been using it for at least 20 years, and never had problems.
