How do I make a waterproof 120 V splice underground

[wdfifteen]

I use a 1/2 conduit box like this one

Conduit Body, C, 3/4 In Hub, PVC - Conduit and Outlet Bodies - Conduit - Electrical : Grainger Industrial Supply

Put the wires in through the end holes, make the connections with wire nuts, then put a little tape on each end to keep the epoxy from running out. Fill the box with liquid epoxy and screw the top on. Costs less than $15 and it doesn't matter if the UF jacket has grooves in it. I've had trouble with the shrink connection type of splice, never had a problem with a splice embedded in epoxy.

 

[sweettractors]

Thanks for all your replies. I finally used the silicone tape over the compression chamber seal locks that were on the wires. I have had no problems so far. Ken Sweet