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I've got to "push" a couple of 3/4" conduits under an existing concrete patio slab. Distance is about eight(8) feet. Patio was (reportedly) poured over a layer of compacted coarse sand. There is clear access from both ends. I've used a pressure washer to do this job under sidewalks, but never...

Five years ago we remodeled an older single-story wood-frame SFD of about 1200sf. We insulated as much as possible and replaced all windows and exterior doors. Heating was by numerous electric wall units which we scrapped. We opted to install a new forced-air heating system consisting of an Aqua...

I found a new 500 foot roll of #10 THHN at an estate sale and got it for next to nothing. Insulation is green color, however I want to use it not only for ground conductor but for hots and neutral. Is it legal/legit/acceptable to use it in that manner provided that I use appropriately colored...

Bringing electricity from main panel to sub-panel @ shed 20 feet away. I'm using #12 THHN conductors in 3/4" conduit with two conductors providing 240V to a dedicated air conditioner outlet and two conductors for two separate 120V, 20A outlet circuits for hand tools, etc. My question is do I...