Permeate Water Pump. **** PRODUCT MANUAL **** Saves up to 85% of the water that normally goes to drain line. Requires no electricity - pump powered by energy from brine normally lost to the drain. * For membranes rated from 10 to 120 GPD * Improves water quality * Effective for inlet water pressure as low as 30 psi * Fills product tank up to 5 times faster under normal use * Saves 400% of waste water vs. conventional units * Allows smaller capacity membranes * Increases membrane life * Prevents "membrane tds creep" * Allows greater product tank pressure (90% of feed pressure) * Compact size