Permeate Pump ERP 500 Upgrade Kit

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Product Features

Aquatec ERP 500

Designed for systems using membranes no larger than 50 GPD production. These pumps are much quieter than the ERP 1000 pumps.

90% ASV

Higher threshold auto shut off valve allows for fuller tanks, increase tank capacity

Reduces Waste

Reduces back pressure from the tank, maximizing system efficiency and water purity


Hydraulically powered, uses the pressure created from the waste water, eliminating the need for electricity

Great for Borderline Pressure

Provides dramatic improvement on homes with 35-45 psi, and marked improvement in any situation

Product Description

Non-electric pump improves system performance, decreases waste water, and increases tank storage capacity

Reverse osmosis requires a minimum of 40 psi to function correctly, and a pressure of 60-80 psi is ideal for best performance. Typically electric booster pumps are the solution, but the non-electric permeate pump provides a low cost alternative for borderline pressure (35 psi) and increases efficiency, even with higher incoming pressure.

By using hydraulic pressure generated by the waste water, this system relieves back pressure from the tank, reducing the amount of waste water produced.

The 90% auto shut off valve allows the storage tank to be filled to 90% of incoming line pressure, as opposed to the 60% that standard auto shut off valves allow, increasing tank storage capacity.

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1 Review

  • 5
    Permeate Pump ERP 500

    Posted by Gary on Nov 17 2017

    Works great. Tank capacity jumped from one gallon to two and a half gallon with better pressure!

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