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Your cart is empty. This is an electronic shutoff switch kit for the Aquatec booster pumps
includes the ESO and the wiring harness. This switch connects to your
incoming water line on your RO system and shuts off water to your system
when your pump shuts off. This prevents unnecessary waste water from being
produced, and replaces the auto shutoff valve in systems with a pump. The
ESO features 1/4" quick-connect fittings. This must be used with a TSO
switch. (See "Related Products")
Product Features
ESO Kit
Kit includes both the ESO and the wiring harness.
ESO
The ESO automatically turns the water supply off and on to your reverse
osmosis system. This saves you time and water.
Wiring "Y" Harness
The wiring "Y" harness is required to connect the ESO to the Aquatec
booster pump and transformer.
1/4" Quick Connect
The ESO features 1/4" quick-connect fittings for quick & simple connection.
Aquatec Pumps
The ESO works with both the Aquatec CDP 6800 & 8800 booster pumps.
Requires TSO
It is required that the ESO be used with the TSO (tank shut off) switch. If
the ESO is used alone, it will remain closed and no water will get to your
system. (See "Related Products")
Requires Wiring Harness
The ESO requires the wiring harness to connect to the transformer and the
booster pump. (See "Related Products")
Product Description
This is an electronic shutoff switch for the Aquatec booster pumps used in
RO systems with a tank. This switch connects to your incoming water line on
your RO system and shuts off water to your system when your pump shuts off.
This prevents unnecessary waste water from being produced, and replaces the
auto shutoff valve in
Robert C
Reviewed in the United States on February 22, 2025
Must have for any under sink water filtration system with a booster pump.Unless you like hearing the pump run constantly and water go down the drain constantly. If that's your thing, don't buy this anti-headache device.Works excellent so far, after six months. Do recommend
DThat
Reviewed in the United States on June 4, 2024
I purchased the Electric Shutoff Switch (ESO) for my 50 GPD 5-Stage Reverse Osmosis system, along with the Aquatec 6800 Booster Pump Kit.Before, my feed pressure into the RO system was between 30 and 40 psi, which wasn't enough to push water into the holding tank. I was constantly running out of water, and it was really frustrating.I tried everything: changing filters, replacing the membrane, and even getting a new backflow valve. But it became clear that the pressure was just too low for the system to run properly. Adding this pump was super easy with the provided instructions. Now, my pressure gauge shows about 60 psi, and I haven’t run out of water since. The water pressure coming out of the spigot is also much higher, making it quick to fill up a pitcher.The Electric Shutoff Switch is a great addition. It lets the system "rest" between cycles and stops it from continuously wasting water like before. The pump is very quiet, and with the sink cupboard doors shut, I can't hear it at all when it comes on.This has been the perfect fix for my RO system, and my whole family loves the fresh, clean water.
Raul
Reviewed in the United States on October 19, 2024
Came with instructions and easily installed. Works extremely well with my booster pump.
bumper
Reviewed in the United States on January 6, 2024
This is the best way to shut off water to an RO boost pump which is often used to boost RO efficiency when used with a well/pump. Most well pumps provide 40 - 60 psi, and the RO works better with higher pressure, up to 80 psi. This valve is reliable, and just works!
Sdfolks
Reviewed in the United States on July 31, 2023
No electrical specification for this solenoid other than working voltage. Manufacturer's website ksd.com.tw also none. Documentation is identical as comes with pump, just how to hook up a generic ESO, so nothing specific to the solenoid.Was concerned about power drain but monitoring with the transformer plugged into a Kill A Watt meter showed only around 4 watts extra for the solenoid over the 13-15 watts the pump used.No mounting flanges, just a couple of holes on the underside. Guess I'll need to mount it screwed to a small block of wood, right now it's hanging from the pump 😔It works as advertised with the above caveats. The jury is out on how long it will last.
Water Store
Reviewed in Canada on August 24, 2022
Planning on installating this and although the description clearly states that instructions are included, none were.
Robert
Reviewed in the United States on June 4, 2022
Does exactly what it is supposed to do, Turns off the Supply water when demand is off.Thank you!
Jason W
Reviewed in the United States on May 10, 2019
works great and allows you to remove the old style balancing valve that can't be adjusted. You can install this valve after the prefilters but before the pump which can increase the life of the pump and allow you to control the output pressure of the RO system. Just be sure that you don't set the output pressure greater than the total membrane pressure minus osmonic pressure (osmonic pressure is a product of TDS, and temp of water) as this would adversely affect the quality of your product water. Membrane pressure should be at least 10 psi greater than osmonic pressure + desired output pressure.My two centsJason
Bob 🎮💻
Reviewed in the United States on May 22, 2018
I have had an Aquatec Booster pump for about a year. It has raised the pressure to the membrane to 80 psi. The downside is that if you only pull a small amount of water, the pump does not click on, but product water is made at a lower psi, raising the tds of the final product water.This shut off prevents the making of product water until the booster turns on. You can pull small amounts of water. Once enough water has been drawn, the booster turns on and the shut off opens. It has completely eliminated tds creep in my system.
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