Which threaded plugs for FA on PVC stub ups in slab, or any input on fiberglass 90s

[ibewelectric]

I was wondering what a good threaded plug everyone is using on PVC stub ups through slab? I'm doing FA's flush with slab and I'm trying to avoid duct tape. I was going to try taping a strand from marking whiskers on the side of the FA's to shorten my time on chipping them out, it will be around 250 - 300 stub ups total. Any thoughts or better ideas? I already got shut down on using GRC 90's as they have been my normal install for a few years now. Specs is allowing PVC above slab, but personally I don't want to spend countless hours chipping and repairing pvc stub ups. Other trades look at pvc stub ups as a target and challenge to break as many as they can.

I've heard good things about fiberglass 90s too but I've never used them, any input on fiberglass 90's and a good transition would be great too, thanks!

 

[letgomywago]

Plumbers use those glue is bust open caps that sit inside the wall stubouts. I've uses either duct tape or a regular pvc cap and cut it flush with where I need it. Honestly I'd try and get the FA above the slab a bit even a few inches will make it easier to maintain the integrity from being filled with concrete.

 

[Rick 0920]

I always used a transit laser level when doing underground for my panels and refrigeration cases. You can determine finished slab level easily and have your PVC FA just under the concrete. Use metal bull plugs and screw them into your FA's. You can find them easily by using a magnet on a string if they are just under the concrete. The bull plugs can be easily removed by using a 3/8" or 1/2" drive ratchet. For panels, it makes them look beautiful when you cut and thread RMC and bring them up level to the the panels. for refrigeration cases, you can screw a FMC 90 degree connector right in to the FA. Those of you that have done refrigeration cases know how little room that you have under them.