Hey guys. I'm new here and trying to get some help. Trying to take out old lighting fixture that was bad and having a problem with pulling the wire out. In doing so I took off the sealant that covers the ground wire and screw. My question is, when I do run new wire to a new light and reattach existing ground wire , does the ground wire need to be sealed again from the water ? If so,with what ? Hoping that it doesn't because I will have to drain water to seal it. Thanks for any help !!!