Bobbin wound Sand Filter (Top-mount)

Features:

Top mount sand filter are built to be tough, longer lasting and better performing. Constructed of polyester resin and non-corrosive fiberglass filament winding, all internal components and connections are injection molded PVC. They produce more filtered water with less pump horsepower. UV-resistance surfaces allows working under sunshine. Easy-to-use six position valve makes you selection of the valve/filter operation in a proper way.

Advantage:

Meet NSF certificate requirement

All-new Crossover Bobbin Winding Technology

Every one approves 36psi/2.5bar as maximum working pressure, burst pressure testing over 80psi/5.6bar

UV resistant and anti-corrosive

Reduce waste of water and chemical consumption

Special drainage, to easy draining of the tank, easy to maintain and ice-free in winter
Pressure gauge makes it eaasier to examine and maintain.
Air relief bolt enables easy release of trapped air during operation of the filter.

• Multiport valve main parts:
  -FILTER(Normal filtration and vacuuming).
  -BACKWASH(Clean filter by reversing the flow).
  -RINSE(Used after backwash to flush dirt from valve).
  -WASTE(By-passes filter, used for vacuuming to waste or lowering water level).
  -RECIRCULATING(By-passes filter for circulation water to pool).
  -CLOSE.