Hello from Munich/Bavaria with Hysucat!

[Fabian]

Hello from Bavaria!

My name is Fabian and I bought a used Hysucat 6.5 (210 Leisure) with an Evinrude 225 h.o. last year.

Driving the Hysucat is really fun but I also have some massive problems with it.
There‘s a lot of water leaking in the hulls (while driving and while on the pontoon) and the lower parts of the tubes turned out to be in really bad condition.
The water sort of sanded the PVC down so that it is porous now and air is leaking massively. A simple patch can‘t fix this, because the water rips the patch off again at 60mph+

Also the boat is hanging a bit to the left side equal if on the plane or hanging still on the pontoon. (I can‘t explain why….even a second person, standing on the right side can‘t fix this tilt)

One thing I‘m absolutely in love with is the Evinrude 225 h.o. Such a beast

Ok…..so because a Hysucat in Germany is as rare as a unicorn, I decided to join RibNet and hope for help.

Thank you!

Best regards
Fabian

[Roflhat]

Hey Fabian, welcome to the forum

Bit ambitious but you could try liquid latex inside the tubes. Common trick on thundercats with PVC tubes which have tiny pin prick holes. It coats the inside and makes them hold air much better, you pour it in through the valves then move the boat around to get a good coating. Don't bother buying marine specific liquid latex, just the ebay stuff used for halloween works fine. Doesn't work for big holes of course

[Fabian]

Hello!

Thank you!

I already tried to seal the right rear tube with one bottle of Polymarine Sealflex, but I was badly disappointed.
It never sealed anything not even the smallest pinholes.
Even today when I inflate the tube, I can see the milk bleeding through the pinholes, just like water.

Maybe the non-boat specific liquid you suggest is the better choice. I should give it a try.

I also tried Devcon Flexane 60L on the outside of the tubes.
(Quite expensive PU coating. Some guys even repair airplane tires with it) Really tough material, but no chance to seal everything properly in deflated situation.
With inflated tubes, of course, it blows bubbles.

Maybe it would work better in the tube. But no idea how to get this into the tube, it‘s to tenacious to fill it through the valve……

Best regards
Fabian

[telecast]

Hi Fabian,

Welcome - having also bought a boat that I love but had worn out tubes I think you will need to get it re tubed it’s like having a new boat - leave it on pontoons with no worries etc.

Are you sure that there is not water in one of the tubes causing it to lean over ?

[Fabian]

Hi!

Thank you!

Yes, you‘re 100% right. Re-tubing will be necessary.
Some seams are also delaminating so it‘s just a matter of time till there is more bad tube than good one.

I‘m just very frustrated at the moment, because I only could do one ride since I bought it. Than the patches fell off and I saw what the seller tried to hide…..
I would love to use the boat with the old tube for at least some weeks now and then getting new tubes in a year or so.

I think there‘s no water in the tubes, no.

Best regards
Fabian

[telecast]

I hear what your saying - in my experience I spent a lot of money patching things up that would have been better spent on new tubes.

And if I’m really honest with myself the boat was not really safe.

But it is a painful place to be.