RainDance Water Systems Whole House Reverse Osmosis
Frequently Asked Questions

At RainDance Water Systems, we specialize in custom-built whole house reverse osmosis packages using your most recent water test or water analysis to achieve optimum production and water quality results. Additionally, we customize any needed pre-filters or post filters with filtration media that best matches the problems in each customer's water. Below you can find a comprehensive list of Frequently Asked Questions & Concerns about our specialized Whole House RO Packages and reverse osmosis systems in general.

Have a question you don't see answered below? Let us know!
Our Online Live Chat System is available from 5am to 10pm PST - 365 days a year - Emails are also answered 7 days a week 365 days a year or if you prefer to call,(1-877-788-8387) our office hours are from 9am-5pm PST Monday-Friday.

NOT ALL RO SYSTEMS ARE CREATED EQUAL!
 We invite you to compare our quality, knowledge, and support with any others on the market today. We receive many phone calls from customers who have purchased whole house reverse osmosis systems from other companies and now regret it. Many of our competitor's RO systems are generic, massed produced and show up right off the shelf. Unfortunately, these systems have very low filtering parameters and can rarely be customized to treat water outside their listed parameters. 

Our custom-built whole house RO systems are specifically designed to treat municipal city-treated water sources as well as brackish salty well water sources with a range of accommodations for every individual water source. We can also run an estimated RO water quality projection on your untreated water to let you know what to expect before you make a purchase. Contact Us Today.

Is A Whole House Reverse Osmosis System The Right Choice?
Will A Reverse Osmosis System Filter Everything In My Water?
Will I Still Need A Water Softener Or Iron Filter?
How Does A Whole House Reverse Osmosis Work?
Is RO Water Corrosive To Copper Plumbing?
Does A Reverse Osmosis System Remove Healthy Minerals?
How Do I Size A Whole House Reverse Osmosis System?
Can I Save Money And Install My RainDance Whole House RO Myself?
What Is The Filter Maintenance For A Whole House RO System?
Does An RO System Waste Water?

whole house reverse osmosis package

Q: Why do I need whole house reverse osmosis (vs. under-the-sink RO)?

A: There are many reasons why a family needs or wants purified water at every tap in their home. The primary benefit many consumers enjoy is the pure, clean drinking water. This is why compact, inexpensive, and simple under-the-counter point of use (POU) RO systems were introduced. With a new shiny separate faucet installed next to your kitchen sink, your family can fill their cups, bottles, bowls, pots, pans, or anything else used for cooking and drinking with pure RO water. But what about the other areas of the house - do you really need pure RO water at every tap? A POU drinking water RO system is limited to one faucet, very limited in capacity & flow rate, and some models can waste up to 7 gallons of water to make only 1 gallon. What are the benefits of expanding this simple filter into a complete water purification system for your entire home?

Every customer has different needs for reverse osmosis purification besides great-tasting drinking water, whether it's for problematic levels of arsenic, chromium, nitrate, or uranium, corrosive levels of sulfates, sodium,  chlorides, or other salts, undesirable levels of fluoride or minerals, or varying concerns that can be best treated by a whole house RO. Do you have a little one that likes to drink the bath water, or is it convenient for you to grab a drink of water from the bathroom sink before bed? Are you noticing corrosion on water fixtures, appliances, or does excessive salts make your hair dull, skin pasty, or clothes stiff? You'll notice the difference immediately when you take a shower, run a load of laundry, or shine up your faucets with purified whole house RO water.

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Q: Will an RO system treat everything in my water?

A: The very first question we get from our customers is if reverse osmosis is the cure-all for their water problems and will take care of every contaminant that may be in there. The short answer for this is absolutely not. Reverse osmosis membranes are highly efficient at reducing or removing salts, dissolved minerals and metals such as aluminum, arsenic, barium, cadmium, chloride, sodium, sulfate, uranium, chromium, copper, fluoride, lead, mercury, nitrate, selenium, silver, and zinc. RO is also effective with asbestos, many pharmaceuticals, bad taste, color and odor-producing chemicals, particulates, total dissolved solids, turbidity, and radium. Technically, these membranes can take care of pretty much anything in the water, but it'll last about a day or two before the membrane fouls and needs replacing if proper pretreatment is not in place.

For this reason, certain contaminants must be pre-treated before the water touches the RO membrane. The most common and problematic contaminants that can foul a membrane and need to be pretreated are chlorine, iron, manganese, and hard water.

Many home owners may already have a water softener in place which can be used as pretreatment with your new RO system as long as it has been well maintained and performs optimally. If you don't have existing water treatment, we offer a large selection of compatible water softeners, iron filters, or other pretreatment systems needed to protect our RO systems and keep our customers happy for years to come, including custom well water filters for a single or combination of contaminants that may affect your RO. Our TSM Whole House RO Packages include sediment and activated carbon prefilters as a standard feature to protect the RO from sand, debris, and chlorine, and provides additional treatment for "volatile" contaminants (VOCs) such as benzene, trichloroethylene, trihalomethanes, radon, herbicides, pesticides, and insecticides for true well-rounded treatment and purification.

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Q: How does your whole house RO system work?

A: To start, reverse osmosis is a separation process in which dissolved ions, heavy molecular weight compounds, and particulate matter are removed from a liquid. The process splits the liquid flow into a purified stream of liquid which has passed through the membrane (permeate) and a concentrated stream of liquid which has passed over the surface of the membrane (concentrate).

With our complete TSM-RO Packages, pressurized water from your city treated or well water source enters the attached dual prefilter cartridge system to remove sediment, debris, rust, and chemicals. This pre-filtered water enters the reverse osmosis water purification system to treat and remove numerous contaminants. This purified water then enters the pH neutralizer / remineralizer then begins to fill the near-by storage tank. The purified water will continue to fill the storage tank until the tank is full and the RO float switch closes and shuts the entire RO system off. When there is a demand for water the re-pressure delivery pump is activated and draws purified water from the storage tank to your taps. If enough purified water is used to the point where the float switch is reopened, the RO system is automatically reactivated and begins to replace the purified water that has been depleted in the storage tank.

Our specialized whole house reverse osmosis systems are computer designed utilizing the latest up-dated element data. This insures maximum recovery and optimum water quality while minimizing capital and operating costs. We provide estimated post quality information along with operating cost and projections on future production and water quality. In addition we provide custom built pre-treatment as required to provide the most economical and environmentally friendly operation of the entire system.

If you already have a water analysis email your results to RainDanceWater@Consultant.com or fax it to 760-896-6999 Attn: "Whole House RO Recommendation" and we will recommend the appropriate water treatment system.

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Q: Is reverse osmosis water corrosive to copper plumbing?

A: The reverse osmosis purification process can end up lowering your pH levels, resulting in acidic water that can cause corrosion of copper pipes and metal water fixtures, but this is dependent on your water chemistry. If your starting pH is around 7-8, the RO system can lower your pH below 7, which is where the water can start to become more acidic. If your pH is 8 or greater, the RO system can lower your pH to a more neutral level and won't be acidic. For our customers who fear acidic water, we offer a pH correction remineralizer system as a standard feature in our Whole House RO Packages which is designed to go right after the RO system to raise your pH back to neutral levels, effectively protecting your home from acidic water corrosion.

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Q: Is the RO water unhealthy to drink?

A: The second most-asked question is if reverse osmosis removes all the essential minerals from the water, making it unhealthy for our bodies. Reverse osmosis does remove a variety of minerals and elements from your water, but this does not make RO water unhealthy or unsafe. Our bodies receive essential minerals and vitamins from the food we eat, so drinking purified RO water is not depriving your body of these.

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Q: What size RO system do I need / How many gallons per minute can I get from an RO?

A: Our Whole House Reverse osmosis systems are sized based on your gallon per day (gpd) usage. They should not fall under the sizing rules of inline filters such as backwashing filters and water softeners, which are designed to accommodate the gallon per minute (gpm) flow rate you have going through your pipes. Rather, a reverse osmosis system is designed to produce a set capacity of purified water per day. For example, a system rated at 800 gallons per day (gpd) is only capable of producing 800 gallons of purified water within a 24 hour period and nothing more. So it doesn't matter if you have an 8gpm or 40gpm flow rate going into this system, it will still produce 800 gallons.

The purified RO water comes out as a small stream, which is why you have to have a storage tank and repressure pump to collect and deliver your purified water to your taps. The delivery pump will then provide the flow rate needed for pressure throughout your home. Our TSM Whole House RO Packages include a 300 gallon storage tank and 10gpm delivery pump as standard features. Larger storage tank and repressure pump options are available upon request.

When shopping for a whole house reverse osmosis system, take into consideration your expected gallon per day usage as well as the hours in which you need purified water. If you plan on using 400 gallons per day, you could go with a 400gpd RO system. However, if you end up using that 400 gallons within 8 hours, a 400gpd system would not be able keep up. To get 400 gallons in 8 hours, a 1,200gpd RO system would be much more efficient. When in doubt, don't hesitate to contact a knowledgeable representative who can walk you through the process to ensure you purchase the right system for you.

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Q: Can these systems be installed by the home owner?

A: Our whole house reverse osmosis packages can be installed by the determined do-it-yourselfer with considerable plumbing experience or is easily done by a professional plumber or contractor. We provide detailed installation instructions, pictured diagrams, patient & knowledgeable support (our support staff is your support staff!), and information on how each component of our whole house purification systems work. Most importantly, you can get reliable tech support via phone or email to ensure everything is running smoothly. If you want to find out if you can tackle this project, contact us to discuss installation tips and guides.

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Q: Is there a lot of maintenance with a whole house RO system?

A: Typical maintenance is highly dependent on your water chemistry and typical water usage, and not every RO system is built the same. Our TSM Whole House RO Packages include the following typical maintenance schedule which has been easily handled by our customers themselves:

(1) 20" Sediment Prefilter should be replaced every 6-9 months.
(1) 20" Carbon Prefilter should be replaced every 6-9 months.
Note: We include a FREE *6 year sediment and carbon replacement filter package with every TSM Whole House RO Package order. 
(1)  High Performance TSM-RO Membrane which lasts 3 to 5 years.
(1) Post pH Neutralizer & Remineralizer Cartridge should be replaced every 6-12 months.

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Q: Do RO systems waste a lot of water?

A: It's not a secret; reverse osmosis systems use water to make water, which means there is a concentrated discharge water containing the contaminants that were removed by the purification process. Reverse osmosis technology has come a long way since it was first introduced to include higher recoveries for less waste water. Where RO systems used to waste up to 7-8 gallons for every 1 gallon of purified water, they can now achieve 33% (3:1) recovery rate or even better. As with other RO components, recovery and waste/product ratio will vary depending on your raw water chemistry.

Our TSM Whole House RO Packages include a recirculation valve which can achieve a high recovery rate of 50% or better. This translates into an incredible 1:1 waste to product ratio! If you venture into our upgraded high capacity 2,000gpd to 12,000gpd TV-RO Systems you can find recovery rates go up to 60% and even 70%!

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Before You Order Your New RainDance Whole House RO System Check List:

  • Have you talked to one of our knowledgeable staff members? If not, email:RainDanceWater@Consultant.com, use our Live Online Chat to talk with a live team member and get your questions answered swiftly and thoroughly, or use our Online Tech Support Form - There's no sense making such a big investment with unanswered questions or hesitation!
  • Well Water Users: Have you had your well water tested yet? Well water sources may contain contaminants that could prematurely foul your RO, resulting in declining performance and costly replacements. Well water users should never purchase a system blindly! If you have a detailed well water analysis email your water report to RainDanceWater@Consultant.com or fax to: 760-896-6999 Attention: WH-RO. If you haven't had your well water tested yet, RainDance offers a free basic water testing service to determine the best water treatment equipment for you. Find out more about our water testing here.
  • Have you sized your whole house RO system to adequately meet your needs? Reverse osmosis systems are not like point-of-entry (POE) water filters that treat all incoming water. All RO systems are rated at different gallon per day (GPD) capacities, meaning they can only purify a certain amount of water within a 24 hour period. For example, a whole house RO system rated at 1,200gpd can produce 1,200 gallons of purified water in 24 hours, or approximately 600 gallons in 12 hours, and so on. This is important to keep in mind so your RO system is able to keep up with your demand.
  • Do you have the space required for a complete whole house water treatment system? For purified water at every tap in your home, you'll have to take into consideration the other equipment needed with a whole house RO system. Our complete TSM Whole House RO Packages include our compact wall-mounted RO system (of varying widths and heights depending on the model), a pH correction & remineralizer system (20"H x 4"D) a 300 gallon storage tank designed to fit through standard doorways (85"H x 35"D), and a 10gpm repressure pump (13"H x 23"L). These RO systems must be installed indoors to protect from nature's elements as well as kept from freezing temperatures. A simple plumbing sequence diagram can be provided upon request to help you visualize your new whole house RO set up.