Starboard cockpit drain is plugged. I have tried reaching down in with carious flexible tools but no joy. Anyone have an idea short of complete disassembly? I was thinking to ask my diver to try from below...
1/2" scuppers? What a PITA. I have 2" on my boat and even it can accumalate leaves at times. Easy to blow out though.When mine slow or stop, I use an electrician's fish tape to clear; then the dock hose to flush the small debris. I'm planning on enlarging the scuppers/hoses this coming season. They are only 1/2"aperture now, with5/8 hose exiting the transom. Spring and Fall tree debris needs clearing a couple times a month! 1 or 1 1/4" hose may rectify that clogging?
If debris has filtered down over time and plugged the drain from above, often pressure in the same direction with simply compact it and make things worse, while reversing flow removes the blockage relatively easier in many cases.You'd get a drain auger stuck then you would be disassembling it.
Flo617 suggested a shop vac, instead of vacuuming it out, reverse the hose & blow it out.