Ultrafiltration is used to correct problems involving mud, sediment and turbidity. The Water Shed employs this technology when the sediments can’t be removed with a regular filter.
The ultrafiltration technology will filter solids in water down to 0.02 microns. The filter fibres are made from a material called PES (Polyethersulfone). Each one of these fibres is slightly smaller in diameter than a straw. Inside the “straw” are seven openings or bores that run the length of the fibre. Water enters the UF at the bottom of the cartridge and is forced up the bores of the hollow fibre “straws.” The filtering process takes place on the inside surface of the fibres.
Once outside the fibre, the water flows to the permeate port located on the side of the pressure vessel then through the meter controller and on to the intended use. The hollow-fibre bore of each fibre runs from one end of the cartridge to the other.
At the opposite end of the UF cartridge, a solenoid valve is attached which opens and closes. When it is open for the flush, water will rush up the bores. When the valve closes, water has no place to go and water pressure pushes the water through the pores of the fibre (from the inside) to the outside. The flush process is critical in maintaining the longevity of the UF.
The Water Shed Ultrafiltration System also removes cysts, bacteria and most viruses. It produces consistently high-quality water regardless of changes in feed water quality. The system is easy to program and the unit is compact so does not require much floor space.