I have an above ground Wilkins 3/4 inch Pressure Vacuum Breaker 420. The black cap on top is loose and has fallen off. The exposed area is quite wet. There's evidence of some dripping on the ground below, but no active dripping. I wonder if anyone can help me answer these questions:
- Is this something that I should have inspected? By what kind of professional, and how often? Cost?
- Can I easily replace the PVB myself? (special tools?)
Thank you.
Scott