Narrator: Welcome back aboard! Fishing for boat improvement?
Well you caught it! Right here at Ship Shape TV.
John: A little while back we had the film crew out on
the water and we were filming some of the fuel docs in town.
And what happens very commonly,
is when guys are putting gas into their boat or diesel into the boat.
Is after they get done it kind of "splashes back" at you.
And welcome back we again have
the privilege of having Richard Cozier
on the program... Richard: Thanks for having me back.
John: ...from Perko.
And Richard what do you call this event?
Richard: John that's called wellback.
And it basically occurs when pressure builds
up in a fuel tank as you're fueling
and it can't vent fast enough.
In 2010, the EPA mandated
along with wellback,
several other requirements to control fuel emissions.
And wellback was one
of the requirements to be done.
So they require a check valve to be put in
at the point of location of fuel entry.
So we have a demonstration here with a
25 gallon gas tank that I'd like to show you
what wellback is and then how we can solve that.
John: Alright now we're not using gasoline here guys.
We have an actual
fill that you would see at a gas pump
and this is just attached to a garden hose.
Okay, this is water.
But you want me to put some water in this tank
acting like it's gasoline. Richard: Correct.
Richard: So as you start to fill,
I'm going to play as the fill limit valve and I'm going to start
and shut off the pressure of the tank.
You'll see - it builds.
John: Oh my gosh!
Richard: Spits out.
John: That's wellback? Richard: That's wellback.
John: Okay this is really really common in boating.
Richard: Correct. Now Perko has an inexpensive
fix for this that's available for OEM's.
And it's basically a little check valve,
patent pending, that allows
the fuel to go down through and
then it has a flapper valve that closes
to prevent any wellback from coming back up the tank.
John: So okay, so fuels comes
through your fuel fill hose.
It pushes down this flapper valve.
You see that? Pushes down the flapper valve.
And then if it comes back, it stops it.
Richard: Correct. Now this is an example of a hose
that we're going to change out that has the valve in place.
John: Okay. Richard: It's a very inexpensive retrofit
for a customer that has
boats prior to 2010.
And for the OEM's
it's an inexpensive
alternative to some of the other
internal vent valves that are available of the market.
John: So you want me to put some more water
or slash "gas" back into the fuel fill.
Richard: Correct.
Now I'm going to close off the pressure.
The ICV valve - comes up.
And you do not see the wellback come back up the tank.
John: Zero coming back at you.
This is amazing!
And how expensive of a device is this?
Richard: Basically John retail wise it's less
than 50 dollars to the consumer
to retrofit their boat and OEM's can get it from us directly.
John: Where is it available?
Richard: www.perko.com
Or at any marine retailer.
*clank*