john_morris_uk
Well-known member
I’m not brave and I do it regularly. You’d have to sit and watch the fountain for an hour or more before you sank and no one in their right mind will do that.You need to be very, very brave and just do it.
A hand over the hole will stop the flow if you drop the blanking cap. A sponge jambed in the tube reduces the flow to a trickle.
It’s really not a problem.
I admit I’ve got a crew who I have to suggest he goes on deck and doesn’t watch when I clean ours. He’s got a real phobia about my cleaning the log.
PS The Raymarine ones have a flap that’s supposed to close and reduce the inrush. They’re actually designed to be regularly removed and cleaned. The flap ‘sort of’ works but there’s a brief inrush before it closes.