Thanks Bob, I will look into this check valve. I assume a check valve/ball valve shutoff combination would also work?
Also, the earlier boat has a single central drain and no access. I had considered adding drains with strainers in each corner and some sort of access port, if not a complete opening locker in this space for access to the drain lines and so on. Steve Shenkel M-17 269 Arizona _______________________________________________ http://mailman.xmission.com/cgi-bin/mailman/listinfo/montgomery_boats
