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gotta_ski
07-20-2013, 11:47 AM
My neighbor at the lake just got a early 2000s Maristar. This last weekend he was pulling tubers from the tower. We were having beers that night and I was telling him how that isn't a goos idea and it could cause the tower to fail. We got to poking around the Internet and couldn't find any pictures of failure directly attributed to tubing.

I know they are out there, but dang If I can find them. Does anyone have any shots of damage from this or know where to find them?

bigmac
07-20-2013, 12:05 PM
One could guess that given the higher-than-wakeboard speeds, increased drag, and the possibility of more than one tube with more than one passenger per tube, stresses on a wakeboard tower would be greater. However, I've never heard of tubing destroying a tower and I'm inclined to believe it doesn't happen. Having said that, I've never understood the logic behind pulling from the tower. The majority of the action that makes tubing fun is from the whipping action that can be applied from having the tube attached to the very back part of the boat (tow bar). Tethering it at the center of pull (pylon or tower) would defeat a lot of the purpose IMHO.

Double D
07-20-2013, 12:19 PM
I drag tubes from my tower and have been for 10 years. No issues for me. Cheaper towers could be a problem.


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FrankSchwab
07-20-2013, 01:36 PM
Heard lots of warnings never to do it, never heard of an actual problem.

I'd think the issue is the amount of drag that can be created if the tube submarines - far more than a wakeboarder or skiier could generate. You could probably swamp the boat pulling from the tower if the tube submarines and you choose to turn while still under power.

jakethebt
07-20-2013, 01:47 PM
Heard lots of warnings never to do it, never heard of an actual problem.

I'd think the issue is the amount of drag that can be created if the tube submarines - far more than a wakeboarder or skiier could generate. You could probably swamp the boat pulling from the tower if the tube submarines and you choose to turn while still under power.

The tube submarines are the best reason I have hear yet. I have a flat tube and when one person falls off and one still on, it is hard to NOT sub the tube. When it does, the boat pulls straight and the rudder input is overcome. You have no steering at all for a second. I am usually going so slow I just stop the boat for a second. I can not imagine that load on a tower. If you only pull the old school tubes that carry one rider and never sub, I think you would be fine with even two tubes, but I have no experience it that.

bigmac
07-20-2013, 02:48 PM
So...given the prevalence of towers, and the prevalence of tubes, and the absence of reported tube damage to towers...it sounds like a theoretical problem rather than an actual problem.

FrankSchwab
07-20-2013, 02:54 PM
So...given the prevalence of towers, and the prevalence of tubes, and the absence of reported tube damage to towers...it sounds like a theoretical problem rather than an actual problem.

I think I'm agreeing with you; add this to the questions of flying saucers, lake monsters, ghosts, and bigfoot (http://xkcd.com/1235/).

JohnnyB
07-20-2013, 02:58 PM
So...given the prevalence of towers, and the prevalence of tubes, and the absence of reported tube damage to towers...it sounds like a theoretical problem rather than an actual problem.

Someone forward the question to myth busters

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mustangtexas
07-20-2013, 03:34 PM
Adam could ride the tube.

snork
07-20-2013, 03:48 PM
let me stress James and Adam on a two person tube
give me a xstar with a 7.4 and they're history in 30 seconds

JohnnyB
07-20-2013, 04:07 PM
Adam could ride the tube.

That's funny....lol

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sp00ky
07-20-2013, 06:35 PM
So...given the prevalence of towers, and the prevalence of tubes, and the absence of reported tube damage to towers...it sounds like a theoretical problem rather than an actual problem.

Dude that is brilliantly stated!!

kkkeating
07-20-2013, 07:13 PM
I've pulled tubes, wakeboarders and waterskiers. I've never had tubes slow down the boat, where I've had wakeboarders and waterskiers slow the boat down on hard turns. Another way of approaching the issue is looking at the other end of the rope, the tube end. The tower construction is aluminum tube. The connection at the tube is fabric web sticthed to fabric. I would think that the tube connection would fail much earlier than the tower connection.

dobber
07-20-2013, 07:58 PM
Maybe the deck of the boat could get wrecked instead of the tower.

kevkan
07-20-2013, 08:36 PM
I don't think towers are the problem... its the tubes.

cwarndahl
07-20-2013, 08:40 PM
*I think it would be a boat deck issue well before the tower. I just done do it, it makes sence to me how it could damage the boat, i have a 01 x10 and from factory it had no backing plate on the tower bolts below the deck. i have since made them. how the fiberglass put up with the stress is amazing. i do have stress cracks there but just in the gel. i also dont see a spec form MC with a 10 to 1 weight ratio on the tower or the connection from tower to boat. im sure the bolts have a 10k stress rating. but food for though in case im wrong on that any one?

Mossyrocks
07-21-2013, 09:21 AM
I came across two cracked towers that popped while pulling tubers a while back. Cant remember where but ill look. They were the last model of tower (08,09,10 etc). They broke the weld where the rear support meets the hoop as the tube was slung out sideways. Which i would have to think a heavy side load would be the hardest on it. Maybe it caught a large wave while sideways. Sounds plausible considering thats what most people do with tubes. However, the tower gussets could have been too tight or too loose. I had to tighten mine the other day, had a lot of wobble.

bigmac
07-21-2013, 09:33 AM
In those towers with broken welds, I suspect that high-frequency flexing from just running across the water plays more of a role than towing anything from it.

Mossyrocks
07-21-2013, 10:27 AM
In those towers with broken welds, I suspect that high-frequency flexing from just running across the water plays more of a role than towing anything from it.

I agree, Id say a lot had happened previous to the break. Its been a while since i read the story but as i recall, it finally "let go" with a tuber... My biggest problem tends to be wakeboarders (typically large) that are learning to get up and just wont let go. The boat can only stop so fast.

atlfootr
07-21-2013, 10:39 AM
I came across two cracked towers that popped while pulling tubers a while back.
They were the last model of tower (08,09,10 etc).
They broke the weld where the rear support meets the hoop as the tube was slung out sideways.
..............

BrooksfamX2
07-21-2013, 11:05 AM
The tube submarines are the best reason I have hear yet.

We submarine tubes on purpose....at idle speeds though......its great fun :D