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Old 02-11-2017, 11:16 AM   #1
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Default built in hot tub

I have a client that wants to do a built in hot tub in his basement. He is talking about cutting into the slab and having a custom built tub with a 3/4 hp motor and gas heater. I'm trying to figure out the best way to do the bonding. Im having doubts that he can even get permits for this, but want to be prepared in case.

Anyone ever been involved with one like this?
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Old 02-11-2017, 11:52 AM   #2

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If he builds it in then he would have to make a huge access to get at the motors. I doubt that they will allow him to penetrate the slab with doing some major concrete work.

Anyway I don't believe the bonding issue applies to indoor tubs however the code states above finished floor so IMO you would have to have an equipotential bonding.

Exception No. 2: The equipotential bonding requirements for perimeter
surfaces in 680.26(B)(2) shall not apply to a listed self-contained spa
or hot tub installed above a finished floor.
This means digging up the concrete 18-24" from the edge of the tub and installing the epb
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