Reverse Osmosis Operation
Removes Contaminants

Reverse Osmosis Operation is easy. Reverse Osmosis Systems remove minerals like calcium and magnesium from drinking water.

Although Reverse Osmosis Operation can remove microbiological contaminants. It does not disinfect the water. If you are unsure of the quality of your water entering your RV, get the latest water report from the local water company or park operator.

RO Systems will perform better and last longer if you pre-filter the feed water to remove sediment and taste-and-odor contaminants.

Stages Of Reverse Osmosis Operation

1. During the initial filtration stage, pressurized source water is passed through a particle pre-filter. This removes silt, sediment, sand, and clay particles that might clog the Reverse Osmosis Operation and membrane.

2. The water is then forced through an activated carbon filter that traps minerals and contaminants. These contaminants include chromium, mercury, copper, chloramine, chlorine and pesticides.

3. Water is transferred under pressure into the RO module. The Reverse Osmosis Operation membrane allows only clean water to pass through the small pores in the membrane. Impurities unable to pass through the membrane are left behind and flushed down the drain.

4. This step of Reverse Osmosis Operation sends the treated water to a Water Storage Tank.

5. Treated water is then passed through an activated carbon filter before use to further improve the water's taste and smell.

Reverse Osmosis Operation Efficiency

A small unit can produce a few gallons per hour or 50 gallons per day. With RO Operation incoming water is used to produce the final treated water. The unusable water (called brine) contains contaminants that the R/O unit has removed.

The amount of water used depends on the quality and pressure of the incoming water. This will vary, but a good measure is 4 to 1. One gallon of RO water for every 4 gallons processed.

Reverse Osmosis Operation Maintenance

Reverse osmosis units must be maintained per the manufacturer's recommendations. The sediment pre-filter and the activated carbon pre-filters in the system should be rated by NSF. They should be changed in accordance with manufacturer's specifications.

Reverse Osmosis Operation Brine Disposal

The brine produced in an RO system is usually disposed of by dumping it down the drain. If possible, use the brine water to water lawns, trees or other plants.

Reverse Osmosis System Life Expectancy

Membranes in RO systems eventually fail and need to be replaced. There are two ways in which a membrane can fail, and you can detect these failures easily.

1/ The first type of failure is when the membrane gets plugged with contaminants, and it causes the production rate of the system to drop off.

2/ The second type of failure is a breakdown of the membrane itself. This is impossible to see, and difficult to recognize.

When this type of failure occurs, the contaminants in the feed water will pass right through the membrane.

The only reliable way to detect this type of failure is by measuring the Total Dissolved Solids (TDS) of your product water. You should do this on a regular basis with a TDS meter.

Reverse Osmosis Operation Pre-Filtering

Like most filter systems, RO Operation is subject to plugging up. However, they will perform better and last longer if you pre-filter the feed water to remove sediment and taste-and-odor contaminants. The best way to accomplish this is with RV Water Filter Cannisters that are inline before water enters your RV.

Semi-Permeable Membranes

The semi-permeable membranes are the heart of the Reverse Osmosis System. These membranes are typically installed in a cylindrical housing that is similar to a filter canister.

As with other RV Water Filters, the material they are made of makes a big difference in their performance and longevity.

All products that come into contact with RV Drinking Water should be certified to the appropriate health-based performance standard developed by NSF International.

In the case of RO Operation, it is recommended that they be certified to meet standard NSF/ANSI 58.

These standards are widely accepted in America. Standards help ensure the removal of specific contaminants, as well as the performance and mechanical integrity of the materials that come into contact with drinking water.

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