I have recently purchased a 1976 Catalina 22. There are 2 drains in the cockpit floor that are piped to a tee, which is piped to a valve and then piped thru the floor of the battery compartment. Does anyone know where this drains to? and should the valve be left open or closed?There is a bilge pump laying loose in the gas tank compartment, but it is currenly not connected to anything.Thanks, for the help.Ralph