Replacing three O-rings in my Jandy Valve (solar pool panel valve).
One of the screws is weak and can't be tightened without further
damaging the PVC (I assume).
What can I use to help and be able to tighten the screw a little more?
I need to remove the screws in the future, so I think JB-Weld or
something permanent won't work well.
Sample (not my exact one) valve showing screws. See #1
Wedge of toothpick? :-/