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For this discussion, we are assuming that you have, or will be
getting, a standard canister system. These systems are the most
versatile, in that there is the widest choice of
cartridges available. Here we discuss the range of products
available, and when and where each would be best used. These
comments also apply to other types of filtration systems, although
the range of choices available for them is more limited. Let's
start by explaining some of the terminology used with filters:
- Microns - Sediment filters are rated by the size of
particles they remove, in microns. One micron is one
one-thousandth of a millimeter. Most micron ratings are
"nominal", meaning approximate. If the micron rating is
"absolute" it is exact.
- NSF Class - The National Sanitation Foundation (NSF) rates
filters on their ability to remove chlorine from water. Class
I filters are the best, Class II not quite as good, and so on.
- Life - Most cartridges will eventually become plugged up. This
heading indicates the number of
months of service you should get under typical conditions.
- Flow Rate - Filters, by their nature, impede water
flow. This heading indicates flow rate, in gallons per minute,
under typical conditions. Your actual flow may vary.
- Material - This heading indicates the type of material
that the filter medium is made of. See our section
Information About Water Filtration to learn more
about these materials.
Recommendations for Choosing Filter Cartridges
Selecting the best cartridge(s) for your filter system depends
on your needs, desires, lifestyle, and budget. We will try to
help you make the best choice based on our years of
on-the-road experience and in numerous discussions with our
customers.
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 One-Canister Systems
A single canister system is useful for catching sediment and
even some taste and odor problems as well.
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The PR-5,
RV-SED5 or
RV-SED1 are your
best choices for sediment only.
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The F10
and F5 are the top performers for removing sediment and taste & odor.
The F1 and
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The F1 and
F1pb add cysts with both and lead
and heavy metals with the F1pb. The higher the level of
combination cartridge, the more valuable it may be to consider a
second canister to make it a dual system protected by a less
expensive sediment cartridge.
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Two-Canister Systems
A dual canister system allows a higher level of taste & odor
that can also reduce chemicals, pesticides, lead and heavy
metals, and even cysts, giardia and cryptosporidium.
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The well known system for full-timers we have always offered, uses the
RV-SED1 in
the first canister followed by a
CBC-10.
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For part-timers, the
RV-SED1 in the
first canister followed by a
CBC-KDF is good as
the KDF will prevent bacteria growth during period of no use.
Once used, this system is best stored with the water left in
the canisters because of the KDF carbon block staying in good
shape longer while wet.
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For those who want the longest lasting carbon filter, whether
full or part-time, the
RV-SED5 in the
first canister followed by the
RV-KDF/GAC
carbon cartridge is best.
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Our most popular systems use our F-series cartridges for the
carbon cartridge. These will offer the fastest flow and
the longest life. They are made from fiber and are
naturally resistant to the stagnation issue. A basic
dual will provide the RV-SED5
followed by an F5 cartridge.
The very popular cyst rated system will use the
RV-SED1 followed by the
F1 cyst rated modified carbon
fiber block.
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Three-Canister Systems
The first canister should be the RV-SED5 cartridge and the second
should be the RV-SED1
cartridge, while the third contains a taste & odor cartridge as per the recommendations above.
If minerals and scale buildup are your concern, you could
incorporate an RV_PH
cartridge in the third canister after
selecting the cartridges for the first and second canisters
from the above recommendations for Two-Canister Systems.
If you have a unique situation, please contact us and we
will be happy to give you our recommendation.
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