Aquatec Permeate Pump ERP 1000

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Aquatec’s original Permeate Pump (ERP1000) is a simple, yet revolutionary, device.  Powered only by the hydraulic energy of brine water usually lost to the drain (i.e. no electricity required), the Permeate Pump forces product water into the storage tank, reducing membrane back pressure and maximizing available feed pressure.


These pumps dramatically improve the efficiency of drinking water R.O. water production, reducing wastewater by up to 80%. In other words, if your current system requires 10 gallons of tap water to produce a gallon of pure water (10:1), adding a Permeate Pump should reduce this ratio below 3:1. 1/4" hose connections.

  • Requires no electricity, powered by energy from brine water
  • Improves recovery rates by as much as 400%
  • Can reduce waste water by as much as 80%
  • Enhances contaminant rejection
  • Ideal for membranes rated from 10-100 GPD
  • Effective for inlet water pressure as low as 30 psi
  • Increases membrane life, lower “TDS creep”
  • Fills product tank up to 4 times more rapidly
  • NSF approved (Standard 58)
  • Two-year manufacturer’s warranty


Note: Does not increase source water pressure.

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Product Questions

Can I run both the Permeate Pump and the water save dual membrane + booster pump?
Question by: Arnold on Mar 7, 2024, 5:28 PM
It is suggested to run one or the other on an RODI system as trying to run both can cause pressure issues which in turn can cause an RODI system to not function correctly.
Answer by: Scott F. (BRS Staff) on Apr 30, 2024, 12:21 PM
With a drinking water system (storage tank) and the Water Saver Dual 75GPD membranes will this work without an Auto Shut Off Valve. I have read that we don't need both...
Question by: John on Jan 15, 2023, 11:06 AM
Thanks for the question! Running both is not recommended as there is no real benefit and set up is difficult/not recommended.
Answer by: James Johnson (BRS Staff) on Feb 8, 2023, 4:25 PM
Why not install a permeate pump instead of dual membrane and reduce wastewater and extend the life of the one membrane without the expense of replacing more parts?
Question by: Tim Gray on Jun 8, 2017, 10:10 AM
That is certainly a great idea to add to a system and a recommended upgrade, however while this does increase efficiency and output, it will not match the increase provided through a setup with two membranes in series. For those hobbyists with greater production needs or a desire to minimize waste water, assuming starting water quality is within an acceptable range, the water saver upgrade provides an economical option.

Have a great day!
Answer by: Zack on Jun 13, 2017, 9:36 PM
Will this pump replace the auto shutoff valve the that comes installed on the drinking water plus reef system? I would really like to decrease the amount of waste water I'm producing on my system so I'm trying to figure out this works before I purchase it.
Question by: Tori on Nov 4, 2016, 10:57 AM
Hey there! The Auto Shut Off will still need to be installed, in order to shut the system off after your reservoir is full. :-)
Answer by: Randy on Nov 4, 2016, 11:56 AM