Automatic water filters are maintenance free, according to the manufacturer. They filter to 5 µm, and unit sizes are from 1 to 36" with 2 to 2,000 gal/min in a single filter. The filters operate on water pressure alone and are triggered to rinse by a differential-pressure sensor. Tekrinse screen cleaning technology will use from 2 gal per rinse and is expected to save up to 90 percent of the rinse water.
Automatic Filters Inc., (800) 336-1942