Hello all. I have an aboveground pool 125 feet from the panel in the house. The pool is on a 20 amp gfci breaker at the panel.

Of course, an additional gfci outlet on a separate breaker is at the pool location mounted on the same pole.

We put in a new shed 80 feet away from the pool.

I have run #10 from the pole at the pool to the shed. I would like to tap into the gfci outlet at the pole on the load side. At present, the pool pump and exterior gfci are on a common ground wire back to the panel. All I would like to do is run lights into the shed, no heavy equipment.

Can I pigtail onto the common ground being used in the box? I believe I can but wanted to touch base with you guys first. Of course, all lines going into the box are #10. A common crimp would be sufficient, agreed?

Thanks!

Yes.