I have a 3 way Ocean Blue "lube free" valve that was working fine (leak free) until today when I had to take out some screws to install an actuator. Now around one of the screws I'm getting a small leak that I can't seem to get it to stop. The top of the valve never came out so I'm fairly sure the gasket inside is fine. I've tried tightening the screw up, loosing it, etc. but I can't get it to stop dripping. I'm getting a drip every 2-3 seconds. Any ideas on how to fix this? I can't easily take the valve apart because it's the last valve that leads to my returns and I don't have any way to seal the returns in the pool.