Not a big project --- but after having a few instances over the years where we ended up with a lot of water in the boat (don't ask), as well as after drilling more and more ballast ports to allow water in --- I had always wanted to add a second bilge pump to my boat as a safety net. Mine did not come with one. I did this project last summer.
And if you're going to do it... might as well go big. I opened up a lot of space in the rear of the bilge when I redid the exhaust. So I bought a larger pump than hopefully I'll ever need, a Johnson 2200. My stock bilge pump is a 750 gph. I moved that one forward a little bit in the bilge, which made it lower and serves as the primary bilge pump, and then secured the big daddy Johnson 2200 in the rear corner... about the only place I could fit it. I mounted the floating switch so it will be the backup/OMG/secondary pump.
The new pump comes with a 1 1/2 and 2" output ports. I used the 1 1/2" and bought matching PVC hose (same as our common ballast hose, but a little bigger). And then picked up a larger stainless port and brought it out the side of the boat... so it just sits in line with the ballast ports.
Not a big project... but a little extra piece of mind / safety net. I filled up the bilge with water to test it and then powered the new pump.... it was cool to see how much volume could shoot out the side.
Enlarged and beveled out the hole for the stainless thru-port with a Dremel.
This is what the Johnson 2200 pump looks like. It's pretty large.
Edited by Rugger