Frequently Asked Questions
BUYERS BEWARE! Buying reverse osmosis
units with membranes less than 50 GPD is a marginal approach and buying
units over 50 GPD is a marginal approach.
Also, buying reverse osmosis units
with more than 4 stages is usually a marginal or unethical approach unless you
have a specific need for an additional filter.
For example, a 5 stage filter would be needed if you had arsenic or some
other contaminant that would require the additional carbon block filter in a 5
Ordering a reverse osmosis unit with additional filters such as deionizer
filters is usually unnecessary and marginal.
Companies selling reverse osmosis systems with 5, 6, 7 or even more filters
with additional or unnecessary replacement filters are companies that are using
Also, we find that most of these companies are
non-professionals working out of their homes. Over 99% of all these companies
formed each year never survive their first year in business, and all of those
customers get left with no place to buy replacement filters, which means those
cheap, misapplied aftermarket entry-level reverse osmosis units become
More filters rarely mean it is a better reverse osmosis
unit. In fact, it often means exactly the opposite!
Q and A's:
Q. Why do you say it's
unethical to sell 6 & 7 stage R.O. filters?
There are many discount companies on many discount websites selling off-brand,
aftermarket R.O. units with 6 & 7 stages or more, and membranes in excess of 50
GPD. They do this to imply that it is a better R.O. for the money when in fact
the exact opposite is true.
FOR EXAMPLE: Using a membrane below 50 GPD
will NOT provide enough water.
Using a membrane above 50 GPD (while it will provide
plenty of water) will LOWER the quality of the water.
The perfect sized membrane for ANY household application
is 50 GPD.
While we do sell 75 or 100 GPD membranes, we normally
don't recommend them for residential use.
Reverse Osmosis unit w/ tank.
Please feel free to call and speak with an expert technician for more