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RO-PERM System Installation Manual

RO-PERM System Installation Manual

Why Not Use a Whole House RO System Instead Under-Sink RO?

Water used for drinking and cooking is recommended to be of highest quality. Reverse Osmosis process is considered the finest filtration process, which meets or exceeds the requirements for safe drinking water. Since water used for drinking and cooking amounts happened to be only 1% to 2% of the total amount of water consumed a home and the rest of 98 to 99%, are used for a variety of purposes like flushing toilets, bath showers, laundry, and irrigation etc.  Read more

RO-CTOP Pure Water Production Rate

Read more

What is the Difference Between RO-PERM and RO-PUMP?

RO-PERM uses a non-electrical permeate pump to boost pressure (after filtration) and it’s designed to allow the RO tank to fill fuller so water output will be stronger. This Read more

TDS Meter – How to Test Your Water Quality:

The TDS meter is used to test your water’s quality before and after installing the RO system. It can also tell you when the membrane needs to be changed.

Please follow instructions below:

  • Use 2 clean glasses, fill one glass with Tap water, and another glass with Product (filtered) water (rinse this glass with filtered water several times to get an accurate reading). Read more

Basic Terms for Reverse Osmosis System


  • RO= Reverse Osmosis
  • GPD = Gallons per Day (flow rate)
  • PSI = Pounds per Square Inch (pressure)
  • TDS = Total Dissolved Solids (contaminants) Read more

How to Choose the Right Reverse Osmosis Model?

Choosing the right RO model depends on your incoming water pressure. If you are using city water, RO-45 and RO-90 are the suggested models. If you are using well water, RO-PERM and RO-PUMP are the suggested models.

Please see below for each individual model’s information:

RO-45 & RO-90 models:

  • Water pressure: Works best with 40psi pressure or higher. Read more

What is the Difference between TFC and CTA membranes?

TFC membranes are bacteria resistant and it has a higher removal rate of total dissolved solids compared to CTA membranes. We strongly recommend using TFC membrane for purifying drinking water.

CTA membranes need chlorine to protect itself from damaging molds and bacteria. CTA membranes should only be used in applications where water is chlorinated. We do not recommend using CTA membranes filtering water sources that are non-chlorinated (wells). 


If the issue was not addressed, please contact us at:
800-880-4808, or

What is the Difference Between Reverse Osmosis Water and Distilled Water?

RO water is comparable (or better) than distilled water. Distillation systems are not designed to remove chlorine and other chemicals completely from water. Organics such as herbicides and pesticides, with boiling points lower than 100°C, cannot be removed efficiently and can actually become concentrated in the product water.

Distilled water systems can be more costly to maintain than RO systems. It needs to operate using electricity for water heating and some systems will waste 5 gallons of water (or more) to produce one gallon of pure water. Read more

What is the Difference Between Reverse Osmosis Water and Deionized Water?

RO systems are designed to remove 90-95% of total dissolved solids or higher. If you would like your drinking water to contain TDS as low as possible, you can consider adding a DI (deionized) filter to a RO system as a post filter. A DI filter can remove remaining total dissolve solids after a RO system through ion exchange process.

We do not recommend installing a DI as a stand-alone or pre-treatment filter for a RO system. DI filters are higher in cost and if you don’t first use RO system to remove most of the total dissolved solids in water, you may need to replace DI filter on a weekly or monthly bases. Read more

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