I searched the forum for "Self-Bail Bung" (and variations) but couldn't find any threads, so I posted this thread. If this has been discussed in depth before, please just list the thread number (or link) and I'll chase that discussion down.
My situation: I am about to re-fit two bungs low down on the transom of a 5.4m aluminium runabout (under waterline).
However, I see there are things called "Self-Bailer" bungs for sale - see attached photo.
So, my questions:
1) I know in theory they should, but does anyone have experience that these actually work, and work well? Will opening this bung while I'm travelling at around 10kt empty bilge water (realise 10kt is not very fast) ?
2) Will a "normal" one inch bung (very common), when installed to unscrew to the inside of the boat, have the same effect at the same speed?
3) The special "self-bailer" bung has a rubber flap - will this keep the water out even when the boat is not travelling forward (ie. if you suddenly slow down with the bung open)?
Appreciate any full or part answers.