I have a 1" PVC LB Conduit Body passing through a wall into the electrical panel (the conduit body ultimately leads to a SPA pack). I'd like to add a 20amp receptacle on the opposite site of wall the panel is in but due to other equipment on the back of that wall, none of the other knockouts on the panel are accessible.
Is it acceptable to drill a 1/2" knockout in the conduit body to mount a weatherproof box right next to it (and feed 12ga THWN into that box for the receptacle)?
It's one of these kind of fittings: https://www.lowes.com/pd/CARLON-1-in-Pull-Connector-Schedule-40-PVC-Compatible-Schedule-80-PVC-Compatible-Conduit-Fitting/1000999146