Building My Dream Yacht From Scratch - Installing A Hot Tub Enclosure!

In todays episode were building the hot tub enclosure for my pontoon yacht!

Music:
Fareoh - Cloud Ten

[tywalton]

Welding inspector here! For those long seam welds you want to ensure stay watertight, I would recommend doing a dye penetrant inspection or similar surface testing method. That will be way more sensitive than a soapy water test and may find some defects you may have missed. Relatively cheap and quick too! Good luck with the project!

[seanthompson]

if you want to keep doing sheet metal projects, you should really invest in a slip roller for curved pieces and a bead roller for the flat areas to add strentgth

[craigferri]

Looking great! If you haven't already welded it, you may want to cap the center pontoons and pressure test them before attaching it to the hot tub box; That way, if the weld cracks in the future, at least the center pontoons will remain sealed.

[keith]

I think you should add the nose cones that you removed from the front of the centre pontoons to the front of the hot tub to stop wakes 'punching hard' into the front of the hot tub. This would soften wave impact keeping more water in the hot tub and reduce stresses of impact onto the flat potentially weak front of the tub.

[SR-tngv]

As a Former Naval Engineer i say plumb a pump for the hot tub and basic sediment filter system along with a good drain. Drop in a big fiberglass hottub and flush and fill on the water. Tuck a couple bilge pumps under and a way to access possibly some cool powered deck topper. Flush and fill takes care of most of the nightmares it causes by existing.

[Bespelled]

I would not marry the tub to the pontoons, I’d cap them and leave a small clearance between them. That structure absolutely will flex

[BubblePuppy.]

the hot tub should be a huge drag on your speed. The pontoons knife the water. The hot tub will plow water.

[petersolman]

not being a marine engineer but my gut feel is the hot tub box being sunken is more hassle than its worth. I imagine the purpose of pontoon boats is its a low drag profile in the water that wont plain as such like a flat bottom boat. The big box seems to sit lower than the pontoons so will require a significant amount of power to plain. The sheet metal thickness is fine in my opinion from a structural perspective but fatigue when subjected to repeated slaps by the water pressure on the outside will fatigue the focus points (corners and flat surfaces that flex on the intersection with a rib) purely my perspective as a time served mechanical design engineer. But as always loving your work

[jmkikkawa]

Maybe add a watertight baffle inside the tubes before you weld on the hot-tub, so if that weld joint does fail those tubes don't fill with water?

[ryanbelcher]

You should probably create a point on the front of the hot tub to push water around it, instead of a water plow in front. it will help with directing the water around for better flow dynamics and wont try to sink it like if were just one single blade pushing the water, but cutting through it. kind of like the front of most boats..or the front of the pontoons for the same reason. Especially with that much weight in it will be a plow in the water. Stringers underneath the hottub down the length of the pontoons probably would not hurt. This would probably help structurally as well with the weight of it all. just my thought on it.

[Tclans]

Chris, in order to strengthen the large surfaces you can use a bead roller to roll a bead In them.
Crosses work very well.

[Treetrimmer]

Man I wish I could find an employee half as good as Oscar for my business he such a good worker

[HackeryX]

Watching the expansion and contracting of the aluminum in real time was fantastic

[thedrunkendevildog]

We live and we learn, whether its a success or a fail learning is occuring. I am neutral in the project since I have no boating experience or boat design experience. I'm here to watch creative minds bring an idea to life. Thats more than most people.

[dljones]

fellow Oregonian guy here, good luck, and these comments are brutal.

[TotallyNotRoadkiill]

Banding occurs when the refresh rate of the LED is different to the frame rate of the camera. If you can change the camera frame rate to match the refresh rate you should eliminate the majority, if not all, of the banding. Make a couple of tweaks there and run some tests, it should help greatly.

[cghoward]

Can’t wait to see how you insulate the hot tub. Whatever water the boat is in is a giant heatsink for the hot tub. Will be hard to have more than a “slightly warmer than the river” tub.

[johnschieffelin]

If those super-long aluminum tubes don't crack apart or leak at the seams as soon as you plunge through a big boat wake, I'll be astonished. They seem a bit fragile given their extreme length for the forces they will encounter. Love the videos!

[wkrick]

I hope you have a gantry crane to drop the hot tub down into the box. They're stupidly heavy and awkward. Also, I don't think it's a good idea to weld the hot tub box directly to the center pontoons. Wont the mass of the hot tub flex and crack those weld joints? Maybe cap the center pontoons and keep them separate from the hot tub box.

[cornfed]

That's the largest beer cooler on a party boat that I have ever seen!