- Hey everyone welcome
to SwimUniversity.com.
My name is Matt Giovanisci
and today I'm gonna show you
how to operate a multiport
valve on your sand filter.
(boogie music)
Today we're working with
a Pentair Sand Filter
and the multiport valve.
So on this multiport valve,
there are seven different positions
in which you can put it in.
Now I just want to note that
every time you turn the handle
on your multiport valve,
you wanna make sure that your pump system
is completely shut off.
I like to think of it
like a car with a clutch.
So every time you switch gears,
you need to push the clutch in.
Which in this case,
pushing the clutch in would mean
shutting off your entire system,
moving the handle,
and then flipping it back on.
It's that simple.
It's something you should do
and the reason why we do that is because
if there's water running
through the filter system,
and you move this,
there's a chance that the O-Ring
or the five-spoke gasket
inside the multiport valve
can shift out of place
or even get damaged,
which will cause water to
flow out your backwash port,
or your waste port,
while you're running your
regular filter system,
which is something that
you don't want happening
because you can waste a lot of water.
The first position and the
most important position
we're gonna talk about
is the filter position.
This is the position
that you'll use the most.
Water from your pool travels
into the multiport valve
and pushes down through the
sand bed where it filters.
When it reaches the bottom,
it travels into the laterals,
up through the center standpipe,
and back into your swimming pool.
The second position on
your multiport valve
that were gonna talk about
is the backwash position.
The backwash position
directs water from your pool,
into the multiport valve,
down through the standpipe,
and up through the sand,
taking all the dirt and pushing
it out the backwash port.
Remember,
always use a backwash hose.
After you backwash your pool,
it's good practice to
go into the rinse mode,
which is the third position
on your multiport valve
that we're gonna talk about.
The rinse position resets
the sand bed by working
the same way as the filter position,
but this time allowing the water to flow
out of the backwash port rather
than back into your pool.
The fourth position
that I wanna talk about
is the waste position.
The waste position takes
the water from you pool
and sends it directly
to your backwash port
where it never enters the filter.
This is used to quickly
remove water from you pool
or if your vacuuming
and have a lot of dirt
that your filter wouldn't
be able to handle.
The fifth position that
we're gonna talk about
is the recirculate position
which you won't use that often
but it's good to know about.
Recirculate takes the water from your pool
and sends it right back,
never entering the filter.
This is used to circulate the water.
Some chemicals suggest
using this position rather
than using the filter position.
And finally there is usually six positions
but this particular
multiport valve has seven.
And we'll talk about both of them,
which is the closed position
and the winterization position.
The closed position actually closes off
all of the imports and outports
in your multiport valve,
just completely shuts them off.
Which you will probably never
use or very very rarely.
The other position is called
winterize or winterization,
which essentially closes it off,
but it keeps all the valves
open so it allows condensation
that builds up inside the tank
to evaporate during the winter months.
Now that's it!
That's all you need to
know in order to operate
your multiport valve on your sand filter.
And now you know exactly
how your sand filter filters the water.
So if you have any more questions,
you can ask us on our Facebook page,
which is Facebook.com/SwimUniversity
and of course you can visit our website
which is SwimUniversity.com
and thanks for watching.
(upbeat boogie music)
