Two of my stanchions needed to be resealed when we purchased the boat last year. What a hard job, I had to cut away a small bit the fiberglass in order to reach the bolts on the inside of the boat. I also invested in offset wrenches.I did not receive much documentation with my Cal 28, Just filled the water tank for the first time and tested the water pressure. No problem, but I can not firgure out where the water is draining to in the galley sink. I looked at the bilge and holding tank and do not see it there. Any ideas?Also, do you have a switch marked "shower sump'? Does it work?