Sea water scoop fitted the wrong way around!

[rogerthebodger]

Can I interest you in an economically priced update? No sails, I'm afraid, but it does include wind, weather, tides and waves as well as the usual flow-down-a-pipe and flow-over-a-wing stuff.

I would love to update my memory if I was more local. I'm always interested in expanding my knowledge as its all about having 10, 20, 30, years experience rather than experiencing the same year 10, 20 , 30 times.

I must admit I have been looking at venturis to try to measure fuel flow on small diesel engines that the vane type flow meters are too inaccurate.

 

[rogerthebodger]

If one were to do that what is to stop the bit inside the hull from falling orf? My scoop is held in place with a single nut on the scoop’s spigot on the inside surface of the hull, which is sandwiched between the inner nut and the flange formed by the scoop.
Mike.

This is the type I have in 316 stainless

And the underside.

If you cut around the ridge between the dome and the base the fitting will not fall out.

Mine was fitted the correct way round so I just cut the grid bars to allow easer access to the inside of the fitting to clean any crud from the tubular section of the fitting.

 

[RichardS]

This is the type I have in 316 stainless

And the underside.

If you cut around the ridge between the dome and the base the fitting will not fall out.

Mine was fitted the correct way round so I just cut the grid bars to allow easer access to the inside of the fitting to clean any crud from the tubular section of the fitting.

Why does it have a hole in the plate?

Richard

 

[rogerthebodger]

Why does it have a hole in the plate?

Richard

most likely to allow the casting core for the inside of the grid and to have enough support for the core during the casting process.

 

[Zagato]

This is the simplest answer, and will solve most (if not all) concerns. Have done this on yachts a few times, and even on powerboats if we found they had too much positive pressure during commissioning trials.

Just drilled two holes, job done...