recirculating pool water

I'm trying to improve the efficiency of my recirculation system by reducing the losses of the plumbing. Specifically, I'm looking at ways to eliminate traditional cartridge/sand filters since they seem to be one of the most restrictive elements in the system. The CircuPool TJ-16 "Typhoon"...

There is a water ban in my town, and my pool water level is going to be below the intake to my filter. How can I keep my pool water circulating and clean without the use of my filter? I'm thinking of putting my vac hose into the water intake and leaving the other end in the bottom of the...