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Discussion Starter · #1 ·
I'm running a wire from my sub panel in my garage to an outlet in my backyard for a small pool pump and filter. I dug a trench and bought some 3/4" pvc pipe and a box for the gfci outlet and a LB for coming out of the garage. I will use romex wire in the garage from the panel to a junction box on the outside wall and then switch to outdoor wire. It is going to be 12 gauge wire.

My question is what is the best wire to use to run threw the pvc to the outlet? Should I use 12-2 uf outdoor wire or should I use stranded thhn or similar and run 3 individual wires out there? Thanks for your help on this.
 

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My choice is thwn wire instead of the uf cable.
 

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If it is for a pool pump it MUST be individual wires in conduit, There is no choice.
 

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If it is for a pool pump it MUST be individual wires in conduit, There is no choice.
Missed that part!! That makes it no choice then.:thumbup:
 

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Discussion Starter · #5 ·
Well if there is no choice than that makes it an easy decision! Just out of curiosity what is the reasoning behind it must be individual stranded wire for a pool pump? The pool pump is just one of those little ones you plug in if that matters. I will go tomorrow and get individual wires then. Thanks for your help.
 

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Discussion Starter · #7 ·
I see. I know there are different kinds of stranded wire. What kind is the best to use in this situation? The only kind I have used before was THHN. Not sure what the differences are but what kind should I use here. Thanks
 

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Cable assemblies. I like that:thumbup:

"My residential certified technician will need to install several feet of cable assembly in order to relocate your luminaire, so it could get quite expensive".
 

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It must be THWN. Don't be concerned as THHN is also rated THWN. The "w" stands for wet. And thats what you have, a wet location even in conduit.

How far is the total run of conduit. You might want to use #10 wire on a 20 amp breaker just for the sake of it.
 

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FWIW, if it meets the definition of a storable pool (max water depth 42" or less and some others) Part 1 & 3 of 680 apply and uf is acceptable. Part II of 680 is what requires the ground to be insulated.
 

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Discussion Starter · #11 ·
It is a storable pool less than 42". The run is not that far, maybe 40 ft. So THHN is acceptable for this? I looked at home depot today and all they had was 500 ft rolls of thhn and they are 40 bucks a peice and I would need 3 of them. In case this matters its not a direct wire pump, just need an outlet to plug the pump into. Thanks again for the help
 

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It is a storable pool less than 42". The run is not that far, maybe 40 ft. So THHN is acceptable for this? I looked at home depot today and all they had was 500 ft rolls of thhn and they are 40 bucks a peice and I would need 3 of them. In case this matters its not a direct wire pump, just need an outlet to plug the pump into. Thanks again for the help
Thats news to me. I thought HD cut wire???? You do not need 3 rolls. You need 3 lengths cut to your requirements. I know HD and Lowes will cut any size wire in my area.
Add a few extra feet when having wire cut. Better to have to much than not enough. They will not take back cut wire.
 
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