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Water Filtration Systems


Have you ever researched different water filtration systems, just to be more confused when you were done?  It can be confusing, especially with all of the “we are the best” marketing  solutions thrown at you.

Water Filtration Systems

You have heard of RO systems, but what are they?

  • Are they expensive
  • I heard they fail quickly
  • Are they hard to maintain?
  • Where do I buy a Quality one with customer support?
  • How much water will it make per day?
  • I heard they use 20 gallons per 1 gallon of water produced?


These are great questions to be asking.  I have a basic list of benefits for a three stage RO System, they normally come with the following:

  • 50 or 100 Gallons per Day Production membrane
  • Quick connect Fittings for ease of installation
  • Four Gallon Metal Reserve Bladder Tank
  • Pre-filter
  • Membrane
  • Post-Filter (Carbon)
  • Quick Connect half-turn Filter Cartridge change out

If you would like to treat all of the water coming into your house using RO, you can purchase systems that will treat 6,000 gallons per day.  What are the advantages of this size of RO system?

  • Whole house water is treated
  • Provides Boiler feed water
  • Clean water for humidifiers
  • Great water for Green houses (removes Chlorine and other chemicals)


There are specific requirements for the feed water supplied to the RO System.

  • Feed (Supply) water must have 40psi minimum pressure  for 50 gallons per day (GPD)  the larger membranes only need 10psi
  • Maximum Total Dissolved Solids in Parts Per Million (TDS in ppm) is 2,000ppm for 50GPD system.
  • There is a drain requirement for the waste water (Brine) for an RO System for larger units, the higher the supply water pressure, usually the less water is wasted with the Brine ( between 3 gallons per gallon produced up to 20 gallons of water used per 1 gallon made for low pressure supply, low quality membranes)
  • Zero water waste systems are available, but as of this post, they are for point of use only, and not for larger needs.  Those that produce more, are usually not approved for drinking water.  Instead of wasting the brine to a drain, the high TDS water is then added and diluted to the hot water supply line after the hot water tank.  This means that for zero water waste, you are running higher TDS water to all of your hot water faucets and any appliance that requires hot water, as in some dishwasher units.


Why would you want to use an RO membrane when you look at the pressure required, as well as the waste created?

The choice for membranes is that one, the waste of filters and filter media is lowered, but there is a risk of plugging the membranes.  That is offset by pre-filtering the supply water to your RO Membrane.  There is also the opportunity for cleaning the membrane of certain RO systems, but it does take more time and attention to your water system.  Membranes are built densely, which allows to have a larger membrane packed into a smaller area or cartridge.

The Benefits of Reverse Osmosis Systems

Osmosis offers the advantage that it is a process that can take place while temperatures are low. Therefore, this enables the treatment of heat-sensitive dissolved solids. That is why these applications are widely used for food production.

It is a process that does not require much energy and thus, energy costs are low. The process just requires energy to pump liquids through the membrane.   There are quite a few companies that have  RO units, with a solid reputation for making good high quality water filtration systems products.

I have used products from Omnipure filter company, as well as Watts Water and Good Water Warehouse.  Depending upon your needs and what you are looking to accomplish, choose what fits your budget first, then search for your specific needs from there.

As far as USDA Organic Certification is concerned, as you process your produce and your products, Your water and the quality can play an important role.  Even if you choose to become Certified Naturally Grown, I highly recommend paying close attention to your water supply.

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Chris Downs ———————–  The Caretaker