Page 2 of 2
Re: Flotation
Posted: Mon May 08, 2023 5:02 am
by fredrosse
I have made a steam ejector out of one inch soldered copper tube fittimgs, with suction (standard one inch tee branch) about 1/2 inch above the bilge, and discharge 20 inches higher elevation into the paddlebox of the Margaret S. With a 0.1 inch steam nozzle @ 150 PSIG, 0.5 inch throat diameter, 10 USGPM flowrate. General form similar to the McMaster catalogue, but cost is far less than the several hundred dollars McMaster charges.
Re: Flotation
Posted: Thu May 11, 2023 3:37 am
by Lopez Mike
I view a bilge pump as a stop gap measure to gain time to fix the leak. Thus vigorous action is valued over other parameters.
Glancing at the electric bilge pump on my 25 foot I.C. boat, I see that it is rated at 42 gpm at moderate head. It is perhaps the size of a coconut and uses a 1.5" output hose.
I submerged it in a 5 gallon bucket when I bought it and then turned it on. Everyone nearby, including the cat, got wet.
Mike