TimRob

Setting up my first hot tub. Big Thanks to those who posted all of the information. One question on the 100% bromine to set up the reserve. My dealer sells bromine tablets that ars 96% bromine. He said tablets and a floater will void the warranty as the floater always stays in one place. This will cause a discoloration or damage to the shell. He wasn't very kind to bromine usage. "Too strong ", "people are going away from it". He did try to set me up on the silver. After reading here, I decided against it. Anyway, is there any truth to what he's saying for shell damage?

I work in Automotive and am part of SAE, Soceity of Autmotive Engineers, taskforces. We write requirements such as the NEC. We will discuss a single sentence and how it can be interpretted for 30 minutes. I understand the pain when it comes to reading the NEC and similar documents.

Sounds like you're good to go. I used pvc, but here we have to go 24" down. If I had to do it again, I would probably go with ridgid, which costs more but requires so much less digging. I'm using pvc, which is stiff, not flexible. Is this not the same as rigid? What exactly is rigid? I like the idea of rigid for a few more bucks and a lot less digging. My run is only about 8', so cost difference will be minimal.

I confirmed a split bolt is used to bond the mesh together. It's also used to bond the #8 wire to the mesh. The #8 wire would then be bonded to the hot tub wiring/bar. Tthe inspector gave me a chart for the different types of conduit. EMT is not acceptable. He said I could use PVC, and bury it 18". 6" if under cement.

Thanks for the info. A few more questions. To bond the mesh to the wiring, is a ground clamp such as one of these links below suitable? I'll be bonding the mesh together as the pieces aren't big enough, and bonding the mesh to the wiring. http://www.grainger.com/Grainger/ERITECH-Ground-Rod-Clamp-2KXN2?Pid=search bronze http://www.homedepot.com/h_d1/N-5yc1v/R-100353838/h_d2/ProductDisplay?langId=-1&storeId=10051&catalogId=10053 bronze http://www.homedepot.com/h_d1/N-5yc1v/R-100198848/h_d2/ProductDisplay?langId=-1&storeId=10051&catalogId=10053 bronze I talked to my Dad, a retired electrician. He said we could bond the steel mesh together steel wire. We'll use the clamp for bonding the mesh to the the wiring. Does the conduit have to be rigid? Is thin wall ok?

First time poster and soon to be first hot tub! I have a a few questions that hopefully somebody can answer. I'll have my new Relay hot tub, 7'x7', delivered as soon as the ground drys up. I wanted to do a cement pad as I live in Michigan. I do not want to worry about heaving. I know the ground heaves, as my old deck heaved up at least 6" over the years. One side of the tub will but up against the deck. I may extend the deck steps to a second side. The other 2 sides will remain open. I wanted to do the cement work myself to save some money. I'll start by excavating the topsoil. How much base gravel and or sand should I use for a 4" cement pad? For the electrical, the city inspector said I need a metal mesh throughout the cement pad and 3 feet surrounding the tub. The mesh will be grounded to the hottub wiring. He gave me a copy of the National Electric Code. I can see clearly where the mesh is needed for pools, but in the hot tub section, it doesn't say anything about the metal mesh. Does anybody have experience if the mesh is needed? Thanks for your help in advance.