I don’t know how to find this guy’s leak, but there was an episode of Dirty Jobs that shows how to make a NYC rooftop cistern out of yellow cedar. It’s pretty much a tutorial on how to make one, so I’m sure it contains useful information on how to fix one, too. Here’s an episode recap http://www.t…

As a wooden boat owner your problem sounds familiar. For advice and local supply of products, check to see if you have a local wooden boat mechanic. If you are do it yourself type, there are many methods (and many products) for sealing wood planks available at most internet boat supply stores (th…

What T & R failed to mention is that automotive cooling system sealant is not really something that you would want in a hot tub or anything else that your skin and private parts will be in contact with for an extended period of time. Even if it worked to seal the leaks in that tub, this is not some…

If the cedar tub dried out heat and moisture should reseal the wood as it rehydrates and expands the wood. However you could also refinish the interior using a clear resin based product that would protect the wood

EdS has got the right idea! In fact wooden boat builders would do this in reverse, and go under the leaky boat and let the sawdust go up. So go get some cedar sawdust. Then you can think about whether or not you need to use some epoxy resin on the bottom of the tub. You can get clear resin, and …

I built a 600 gallon indoor koi pond using a ring of milk crates banded with a burly car tow strap, draped with an outdoor pond liner. It works great!!! I suggest going to lowe’s (or equiv), getting a pond liner, then follow click-clack advice by using pond liner (+ silicon), then putting faux layer…

Actually, sawdust idea is trick. Try that first. If all else fails, pond liner will work.

I fixed a redwood hottub several years ago with clear silicone seal. The leak may be in the groove where the staves contact the bottom. Water gets in there (from anywhere) and can travel in the groove. I drilled from outside into the groove and used a tube of clear silicone seal injected with a …

Stop leak for radiators is water glass, sodium silicate. It is safe to use for a hot tub. Just buy a gallon of water glass from a farm supply store. It is commonly used to seal drinking tanks for cattle. SOME stop leak has powdered aluminium or brass added so you don’t want to use that kind in a hot…

EdS has it right. I use it in my hot tub. Staves shift and warp. Worms nibble holes though the wood. The sawdust will find the leak and plug it.

Leaking white cedar hot tub

The Show

EdS May 7, 2011, 3:18pm 2

Don’t do anything quite yet, particularly fiberglassing. All you need is a bucket of cedar sawdust. Fill the tub, throw in the sawdust and let it do its thing. The sawdust will seek the leak, fill the gaps and keeo your tub full. Keep extra sawdust around just in case. I’d hate to see you add any chemicals or glass in the tub. Good luck.

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Leaking white cedar hot tub

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