I'm trying to figure out why my water flow seems to have slowed down quite a bit. I've noticed that the water coming out of my spa - the spa spillover - has dramatically decreased and can't figure out why that happened? I still haven't backwashed the DE filter yet (pool is still only 8 weeks or so old) - the pressure still shows to be low (in the clean section) on the gauge. I keep it the pump on the low speed 1750 (variable speed pump) for about 14 hours a day.
What do I need to do in order to get the flow to go back to where it was?
Is the problem that I need to do a backwash? If so, do I not trust the gauge?