Running AC out of the water

frenchship

Hi,
I need to run my AC with the boat out of the water for troubleshooting . The boat is on his trailer I can not used the type of toilet plunger on the intake it is to closed of trailer bunk. If I used a garden hose to feed the pump should it be on on full blast or used moderate pressure ?
Thanks
Paul

Handymans342

Full blast wont hurt

Ian

Just watch the 2 small plugs on the pump that they aren’t popped out by pressure. A few years ago the marina pumped the pink goop a little strong and these popped out and so startup had water bubbling out when sea coco opened. Luckily I found them in the hull when cleaning up things. 

randy56

Just installed a new AC pump, about 3 weeks ago it was a 580 GPH pump. To give you an idea.

A 1/2-inch garden hose delivers about 9 gallons of water per minute. The standard 5/8-inch garden hose delivers 17 gallons per minute. Larger hoses, such as a 3/4-inch hose, use up to 23 gallons per minute. The average water pressure for your garden's hose bib produces about 40 psi (pounds per square inch).

Michael T

.....as long as you have a steady stream of water coming out the discharge hole in the hull you will be fine. I'd say coming out about 12" from the hull would be plenty.

Michael T

....and check you are double clamped on your hoses so you don't fill the cabin.

frenchship

Thanks for the Infos.
Paul

MarkB

Yeah, I don't think putting it full blast will hurt anything. The thing that normally does damage is water hammer. When you open or close something too fast, you send a shock wave through the system, which is what water hammer is. That can break stuff. So just turn it on and off slowly and you should be okay.