BUYING A REVERSE OSMOSIS (RO) SYSTEM FOR THE WHOLE HOUSE – A SIMPLE GUIDE
A Reverse Osmosis (RO) system is a highly effective and popular technology used by many homeowners to purify water. There are a wide variety of systems on the market so it can be overwhelming when trying to find one that meets your household's exact requirements. If you are currently looking for a whole house RO system and want to know how you can benefit from using a reverse osmosis, what to look for in a RO system and what questions you should be asking, then this guide is for you.
If, after reading our information, you still have some unanswered questions our team at RainDance Water Systems are happy to help. We can be contacted at Support@RainDanceH2OStore.com or 1-877-788-8387.
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What is Reverse Osmosis?
To understand what Reverse Osmosis is you first need to understand osmosis. In simple terms, osmosis is the movement of a solvent, for example, water through a semi-permeable membrane from a region of lower concentration to a region of higher concentration to achieve balance on both sides of the membrane. This movement occurs naturally without any energy being applied. To stop this natural process from occurring you need to apply pressure to the higher concentration side of the membrane. The osmotic pressure is the pressure difference needed to stop this natural flow of the solvent across the semi-permeable membrane.
For reverse osmosis to occur, you apply a pressure that is higher than the osmotic pressure. This forces the solvent through the semi-permeable membrane in the opposite direction to that which occurs naturally with osmosis, leaving any impurities behind. The water passing through the membrane is referred to as the “permeate” (or product water) the remainder is referred to as “concentrate” (or reject/drain water). As the RO membrane only allows a minute amount of salts in the feed water to pass through, the conductivity of the permeate is very low, whereas the concentrate is very high in dissolved salts.
To achieve reverse osmosis in a whole house application setting you need to buy a suitable reverse osmosis system. An RO system is an efficient water purification system and is usually a self-contained unit. Using an RO system you can effectively remove many different impurities and chemicals from water (approximately 95%-99% of contaminants)
To understand what Reverse Osmosis is you first need to understand osmosis. In simple terms, osmosis is the movement of a solvent, for example, water through a semi-permeable membrane from a region of lower concentration to a region of higher concentration to achieve balance on both sides of the membrane. This movement occurs naturally without any energy being applied. To stop this natural process from occurring you need to apply pressure to the higher concentration side of the membrane. The osmotic pressure is the pressure difference needed to stop this natural flow of the solvent across the semi-permeable membrane.
For reverse osmosis to occur, you apply a pressure that is higher than the osmotic pressure. This forces the solvent through the semi-permeable membrane in the opposite direction to that which occurs naturally with osmosis, leaving any impurities behind. The water passing through the membrane is referred to as the “permeate” (or product water) the remainder is referred to as “concentrate” (or reject/drain water). As the RO membrane only allows a minute amount of salts in the feed water to pass through, the conductivity of the permeate is very low, whereas the concentrate is very high in dissolved salts.
To achieve reverse osmosis in a whole house application setting you need to buy a suitable reverse osmosis system. An RO system is an efficient water purification system and is usually a self-contained unit. Using an RO system you can effectively remove many different impurities and chemicals from water (approximately 95%-99% of contaminants)
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How do I know if my well water needs a whole house RO system?
Reverse osmosis technology produces purified water, so it may be suitable for any household that needs high quality water for any reason.
There are many reasons why some homeowners choose an RO system over other technologies. For example, water purified using an RO system may be used to remove high total dissolved solids (TDS) from well water. For other applications the RO system may be used to reduce arsenic, chromium, sulfates, nitrates, chloride, sodium and other contaminants.
Basically, if you need water to be of a higher quality than your city's water supply or private well water, then an RO system might work for you. As there are many different RO water filters to choose from, it is worth having your water analyzed. Before you purchase any reverse osmosis water filter for your well we recommend that you obtain a water quality test report for your well water supply, which will help identify any issues that are essential to deal with and those you may wish to improve. If you have a water report please email us at Support@RainDanceH2OStore.com Attn: RO System - Or contact us about our FREE well water testing.
Reverse osmosis technology produces purified water, so it may be suitable for any household that needs high quality water for any reason.
There are many reasons why some homeowners choose an RO system over other technologies. For example, water purified using an RO system may be used to remove high total dissolved solids (TDS) from well water. For other applications the RO system may be used to reduce arsenic, chromium, sulfates, nitrates, chloride, sodium and other contaminants.
Basically, if you need water to be of a higher quality than your city's water supply or private well water, then an RO system might work for you. As there are many different RO water filters to choose from, it is worth having your water analyzed. Before you purchase any reverse osmosis water filter for your well we recommend that you obtain a water quality test report for your well water supply, which will help identify any issues that are essential to deal with and those you may wish to improve. If you have a water report please email us at Support@RainDanceH2OStore.com Attn: RO System - Or contact us about our FREE well water testing.
View our whole house reverse osmosis systems below
What size whole house reverse osmosis system do I need?
The usual sizing formula for a Whole House RO System is 100gpd per person plus miscellaneous uses. You'll then double this number to find the appropriately-sized RO system. For example, if the usage needs 400gpd then an 800gpd RO system would be appropriate. This allows the accommodation of continuous use plus some extra capacity in case the usage increases in the future.
Keep in mind that an RO's rated capacity (gallons per day, or GPD) means what the system can produce in a full 24 hour period. For example, an 800gpd RO system can produce 800 gallons in 24 hours, or approximately 0.5 gallons per minute (GPM). This is why a separate RO product water storage tank and repressurization pump are needed to deliver high flow, pressurized purified water to multiple taps.
The usual sizing formula for a Whole House RO System is 100gpd per person plus miscellaneous uses. You'll then double this number to find the appropriately-sized RO system. For example, if the usage needs 400gpd then an 800gpd RO system would be appropriate. This allows the accommodation of continuous use plus some extra capacity in case the usage increases in the future.
Keep in mind that an RO's rated capacity (gallons per day, or GPD) means what the system can produce in a full 24 hour period. For example, an 800gpd RO system can produce 800 gallons in 24 hours, or approximately 0.5 gallons per minute (GPM). This is why a separate RO product water storage tank and repressurization pump are needed to deliver high flow, pressurized purified water to multiple taps.
View our whole house reverse osmosis systems below
Whole House Reverse Osmosis Systems

On Sale
On Sale
RainDance-400 Whole House RO Package
$6,388.00 - $8,183.00
$5,388.00 - $7,183.00

On Sale
On Sale
RainDance-800 Whole House RO Package
$6,588.00 - $8,383.00
$5,588.00 - $7,383.00

On Sale
On Sale
RainDance-1200 Whole House RO Package
$6,688.00 - $8,483.00
$5,688.00 - $7,483.00

On Sale
On Sale
RainDance-1500 Whole House RO Package
$6,788.00 - $8,583.00
$5,788.00 - $7,583.00

On Sale
On Sale
RainDance-2000 Whole House Brackish Water RO Package
$12,983.00 - $14,778.00
$11,983.00 - $13,778.00

On Sale
On Sale
RainDance-4000 Whole House Brackish Water RO Package
$13,583.00 - $15,378.00
$12,583.00 - $14,378.00

On Sale
On Sale
RainDance-6000 Whole House Brackish Water RO Package
$14,683.00 - $16,478.00
$13,683.00 - $15,478.00

On Sale
On Sale
RainDance-8000 Whole House Brackish Water RO Package
$16,183.00 - $17,978.00
$15,183.00 - $16,978.00

On Sale
On Sale
RainDance-10000 Whole House Brackish Water RO Package
$17,183.00 - $18,978.00
$16,183.00 - $17,978.00

On Sale
On Sale
RainDance-12000 Whole House Brackish Water RO Package
$18,183.00 - $19,978.00
$17,183.00 - $18,978.00