My '09 cougar 276rls does not have the water pump inlet bypass as well. However, my pump uses the o-ring type fittings, which are secured by a clevis, which makes it extremely easy to disconnect the inlet. For $1.50, I bought a new 90 degree barbed inlet fitting, and a couple feet of clear tubing. I just disconnect the fresh water tank hose, substitute my "winterizing connector", stick the tubing in a RV anti-freeze jug and I'm ready to go. When I'm finished I just reconnect the fresh water tank line, and leave my winterizing plumbing coiled on the floor near the pump. About as simple as it gets!
