The cross-flow filter is a spiral wound filter that includes a semi-permeable membrane wrapped around a perforated central tube.

A system for regulating has long intervals between short periods of back washing the filter.

If you have a sand filter, set the filter to backwash, which will clean the sand.

If you have a sand filter, just set it to backwash, which will clean the sand.

If the pressure rises above the levels recommended by the manufacturer, take a break, and backwash your filter.

The general recommendation is to backwash your filter when the pressure reaches 10 psi over the initial start-up pressure.

Monthly: Backwash the filter; check the alkalinity, and check the salinity, total dissolved solids, and metals.

It is recommended to initiate a backwash when the pressure of your filter reaches 10 psi over the original start-up pressure.