What is best water filtration system for a home
How to Choose a Water Filter | Ask This Old House
you go keV oh thank you Richard but
before I take a sip is it filtered yes
good because you know a lot of people
are concerned about the quality of their
tap water so they're always thinking
about how do I filter I know many people
out 90% of American houses get their
water out of a public water supply
that's perfectly safe
yeah and but they're still worried they
still go out and get cases of this
bottled water but there's no guarantee
that this is any better because this is
just many times water that comes out of
a tap and gets filtered it doesn't all
come out of a spring just tap water in a
box right so they want to find a level
of safety so at the least case you'll
see them do this sure they get a filter
like this and they'll pour tap water in
right and what that water does it goes
down through a cartridge like this
that's gots granulated activated carbon
and that'll going to clean up taste and
odor and some chlorine yeah so that's
great except that you don't get any lime
at it it's been filled up and it's
always empty right yeah it's a trick
right so what you can do is take the
same technology put at the end of a
faucet right here on the spout right so
you can see right here that this is just
gonna come out when you're washing the
dishes you turn it this way when you
want to have filtered water to drink
perfect okay just what you need right
now you can also get this level of
technology in a filter that fits
underneath the sink so right here you'd
have a series of cartridges right here
with a separate faucet right here nice
okay so instead of it coming through the
spout and come through right here and
you can do away with this thing that's
right if this doesn't always look good
in everybody's kitchen yeah
understood all right so but you can also
go one level higher under the kitchen
sink and this is called a reverse
osmosis filter now auro means tap water
comes in this way through a series of
cartridges a pre-filter and then this
middle one is this it's got a membrane
and now that water passes through this
membrane the holes in this membrane are
so small the only thing to get through
is pure h2o is water all no impurities
so what happens is it pushes pushes
pushes through into this tank you're
going to make 8 9 10 gallons a day that
I'm going to sit right here and then for
every gallon you make here one or two
gallons are going to go down the drain
of impure water so incredibly pure
bragging and not a lot of volume there
so you get some waste with it right all
right so
out that's going to handle the water
regionally over here
I'm so excited use I like to see some
sort of whole house filter at the lease
case so this is a really a pre-filter
that's going to come into the house
right here you can see there's different
cartridges that can fit inside it this
is the polyester one yeah look at this
right here this is the same filter about
30 days in oh that used to look like
that that's iron that's gone into 30
that's right and this is one that's got
granular activated carbon for chlorine
and taste and odour so pointy to me this
becomes route near the main so every
drop of water that goes with that goes
to this house sort of late it's going to
clog so I always like seeing this piping
arrangement right here which is a bypass
nice so if this starts to clog at least
for that period you can open it shut
this off up remember in most houses 40
to 50 gallons a day per person comes
into that building for flushing toilets
and for showering and everything else
and as you just pointed out this
happened in 30 days so it's running down
to the basement if that's right so
depending how bad the water is so here's
another pre-filter right here I like the
water comes in through here and you can
see there's a screen right here in a
particular micron you can you can order
and now if it clogs you can see it
getting clogged but instead of a filter
it has to be replaced this can actually
back flush and flush it automatically at
least you know you've got a high level
of filtration for all the water does
away with the filters perfect but it
sounds to me like these things are
catching what sediment things like iron
what if I'm dealing with odor or taste
or soft hard water well there reaches a
point that some of these small solutions
are not the enough of an answer and you
should go out and get your water test so
I know exactly what's happening on
certified state lab or a good outfit
that knows what they're doing with water
and once you do now you can go to a
whole house filter like this and the
only question is going to be is what is
inside this canister you know if you
look inside it you might see that you
need to have sediments and anthracite
coal this could be granular activated
carbon iron it if you got really acidic
water you might have limestone in there
right and so you're going to know what
to put in there based on what that test
tells you so you got just the right
recipe for your water and then
everything's perfect it's right
perfect Richard I love it now I want the
guys thirsty
