Post 42’ bilge pump “philosophy”

Same here but I was prepared with oil pads.
Mine no longer have that problem but I check it during the season to be sure.

Interesting. Three of our four do not have check valves after the pump.

Those 3 pumps and their "Super Switch" float-arms were replaced by local service guys when we got on board the boat in 2021. All of the hose/plumbing after the pumps looks original.

Haven't looked closely at the 4th...

Don't think I've ever seen a "bilge design" that could prevent that last bit of water from draining back down the hose?? Four boats so far (none high-end), always that last little bit of drain-down...

-Chris

My 42 came with multiple pumps from the prior owner including a Rule 8000 mounted under the steering gear and plumbed through 2.5” PVC out the stern. There were pumps in each compartment, along with high water alarms. All the limber holes were open.
At rest, as mentioned above the Post holds the bilge water in the bow. I didn’t like standing water in enclosed spaces like that, dry as possible for me.

I added a couple of pumps, and an additional 2000 in the forward bilge.

The forward bilge already had two 2000’s, one mounted fairly low and one about 8-10 inches higher but still well below deck level. The 2000 I added was as low as possible.
I also routed out an approximate 1” deep 3” hole at the lowest point in the bilge and set a Rule 500 in the well, the type that checked for water every 2 minutes. This pump was plumbed into the shower sump.

For winter layup I drilled a hole in the bow low point and added a bronze transom drain plug with the threads chased to install the plug from the inside.

And to add to keeping the bilge dry I installed dripless shaft seals and replaced the rudder ports and seals (along with new rudders due to a corrosion problem).