Reverse Osmosis System | ASAP Plumbing

Reverse Osmosis SystemReverse Osmosis System is a process in which dissolved inorganic solids (such as salts) are removed from a solution (such as water). This is accomplished by household water pressure pushing the tap water through a semipermeable membrane.

When household water pressure pushes water through the Reverse Osmosis System membrane and additional filters, such as sediment or carbon filters, the impurities are filtered out and subsequently flushed down the drain. What is left, is delicious, clean-tasting drinking water. Note that many RO units incorporate a 4-5 stage process for optimal water quality.

Basic Components Of A Reverse Osmosis System:

  1. Cold Water Line Valve: Valve that fits onto the cold water supply line. The valve has a tube that attaches to the inlet side of the Reverse Osmosis System pre filter. This is the water source for the RO system.
  2. Pre-Filter(s): Water from the cold water supply line enters the Reverse Osmosis Pre Filter first. There may be more than one pre-filter used in a Reverse Osmosis system, the most common being sediment and carbon filters. These pre-filters are used to PROTECT the RO membranes by removing sand silt, dirt, and other sediment that could clog the system. Additionally, carbon filters may be used to remove chlorine, which can damage the RO membranes.
  3. Reverse Osmosis Membrane: The Reverse Osmosis Membrane is the heart of the system. The semipermeable RO membrane is designed to remove a wide variety of both aesthetic and health-related contaminants. After passing through the membrane, the water goes into a pressurized storage tank where treated water is stored.
  4. Storage Tank: The standard RO storage tank holds from 2 – 4 gallons of water. A bladder inside the tank keeps water pressurized in the tank when it is full. The typical under counter Reverse Osmosis tank is 12 inches in diameter and 15 inches tall.
  5. Post filter(s): After the water leaves the RO storage tank, but before going to the RO faucet, the treated water goes through a final “post filter”. The post filter is usually a carbon filter. Any remaining tastes or odors are removed from the product water by post filtration “polishing” filter.
  6. Automatic Shut Off Valve (SOV): To conserve water, the RO system has an automatic shut off valve. When the storage tank is full, the automatic shut off valve closes to stop any more water from entering the membrane and blocks flow to the drain. Once water is drawn from the RO faucet, the pressure in the tank drops; the shut off valve then opens to send the drinking water through the membrane while the contaminated wastewater is diverted down the drain.
  7. Check Valve: A check valve is located in the outlet end of the RO membrane housing. The check valve prevents the backward flow of treated water from the RO storage tank. A backward flow could rupture the RO membrane.
  8. Flow Restrictor: Water flowing through the RO membrane is regulated by a flow restrictor. There are many different styles of flow controls, but their common purpose is to maintain the flow rate required to obtain the highest quality drinking water (based on the gallon capacity of the membrane). The flow restrictor also helps maintain pressure on the inlet side of the membrane. Without the additional pressure from the flow control, very little drinking water would be produced because all the incoming water would take the path of least resistance and simply flow down the drain line. The flow control is most often located in the RO drain line tubing.
  9. Faucet: The RO unit uses its own faucet, which is usually installed on the kitchen sink. Some areas have plumbing regulations requiring an air gap faucet, but non-air gap models are more common

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Brooke E

I will never use another plumber ever after my experience with ASAP Plumbing. I had an emergency plumbing issue on the Sunday of Memorial Day weekend. My sump pump had overflown and there was water and sediment in my basement. Within an hour of calling ASAP Plumbing they had dispatched a plumber to my home. Not only was her able to quickly diagnose the problem and get the part ordered, but also the owner Keith Miller came out the next day to access the progress and make sure it was completed quickly. Keith also helped me work with the builder since our home was only five years old to make sure this was an isolated incident and explained what questions we needed to ask the builder. I would recommend ASAP Plumbing to anyone who needs a professional, reliable plumber

Parma, OH

Carol S

I just wanted to take a moment to applaud one of your service man, Shane. I recently found myself in the midst of a plumbing emergency in Parma, Ohio and I thumbed through the phonebook and randomly called ASAP Plumbing. I am so pleased with the level of service that I received! Shane was expedient, professional and thorough. He was also extraordinarily compassionate to my situation and he helped me to find the most effective and inexpensive solution for me. Shane went above and beyond, staying until after 9:00 p.m. to ensure that the job was not only completed, but that it was completed well. Of course, I hope that I will not need plumbing services again anytime soon…but I can assure you that if I ever do, I will be calling ASAP Plumbing and I will be requesting the services of Shane. He is a stellar representative for your company!

Medina, OH

Tracey M

I wanted to thank you for all the wonderful work you did to solve my plumbing emergency. From the first panicky phone call to Karen, to the last shovel of dirt back into the hole, you folks handled my emergency and me with the utmost professionalism. I found your number on the spine of the phonebook at 10:30 at night and called after trying to get hold of my own plumber. I am so glad I did. I will recommend your company to anyone and everyone I come in contact with that needs a plumber. I was in the service industry for 35 years and it is rare to come across a company that provides the kind of service that ASAP Plumbing does. You should be very proud of all the great work you do. Thank you again!!!!!!!!

Strongsville, OH

Paul B

I choose ASAP Plumbing, not because they were the cheapest, but because their estimator Shane showed a genuine concern about the problem at my house and seemed extremely knowledgeable. My gut said he’d do the best job. No surprises! Shane was on time, did a great job, and even talked to my neighbors about their problem. He is a very good listener and a real professional without putting any other company down and knows what he is talking about. I was very impressed and pleased. Not only did he do a great job, but also he wrote his report very clearly so that I can include it with the documentation that will go with information about my house which is on the market. Thank him again for me. He’s the best and has a great future. Shane is a real asset to your company and a first class representative of it. You will always have customers as long as he works for you.

Barberton, OH

Pat A

On September 16, my wife and I awoke to discover the sanitary sewer system failed causing sewage to back up in the floor drains flooding our finished basement. We called ASAP Plumbing. The crew was on site within the hour. They proceeded to scope the connection with remote television equipment; contacted and met with Medina County water crews to survey the main sewer line. It became clear the failure was with the house connection. ASAP Plumbing purged the line as best they could allowing us limited usage of the system until the line was properly replaced on September 21. We are very happy with the speed and efficiency with which ASAP Plumbing handled this situation. We would recommend ASAP Plumbing to anybody experiencing a similar situation.

Westfield Center, OH

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