After 35 years of stretching over the engine or having to unload the back berth (garage), I finally installed an access port to easily reach through and operate the raw water seacock. I had an extra Beckson port laying around and thought, "What can I do with this"? It took a couple of trips to the boat as the combination of my 4-3/8 inch hole saw plus my Dewalt drill motor was too long to fit in the opening. One week later it was off to Harbor Freight for a hole saw mandrel that would fit my 3/8 inch right angle drill (I only had a 1/2 in shank mandrel).