Last summer at Lake Powell, I took the cap off that threads on to the anchor-all around white light mount to install the light tower, and that was the Last I saw of it. I looked all over for it, ended up putting tape over the hole to keep water out. I stopped at West Marine in Gig Harbor to try and find a new one. The guy was very helpful, and next thing I knew, I was on the phone with a lady from Perco, the manufacturer. She said she would be happy to send me a new one for free. Nice, when I told her my street #, she laughed, and told me that was her street # too. What are the odds? So today, I pull the boat cover off, and climb up to screw the new cap on. Next, I went to pull the cover off the bilge pump for inspection, and what's this.....The old cap I lost a year and a half ago! What are the odds.........