deckwash pump - standalone type

Jun 20, 2017 8:11:56 GMT @magnetman said:

I'd like to set up a pump I can use to wash down the exterior of the boat with canal or river water.

Ideal would be a box with a 12v pump and a 12v 7ah battery in it for portability. It would need to have a suction head of say 1 metre and discharge of 2 or 3 metres. 1/2" hose so not large diameter, with a flow like a household type garden hose if possible.

Any ideas on what would be the ideal pump?

Whatever pump you'll get, make sure that it's one that can run dry without going up in smoke after 1 minute.

Use a good filter at the inlet side, there are many different brands of pump that would do what you want.

You could even use a drinkingwater pump too, as they will pump to at least 1.5Bars which will be a waterheight of 15meters.

Peter.

Jun 20, 2017 9:33:08 GMT tonyqj said:

I'd have thought a Whale gulper would be ideal.

Definitely a very good and long-lasting pump, not a lot of pressure, but quite likely enough for magnetman's needs.

Peter.

Jun 20, 2017 15:45:52 GMT @magnetman said:

Jun 20, 2017 9:33:08 GMT tonyqj said:

I'd have thought a Whale gulper would be ideal.

I've got a Whale gulper on the shower. Its a single diaphram pump with an irregular flow due to its design. Whale do other pumps but this is the only one I have noticed called a Gulper.
Its durable and reliable but it doesn't really imitate a garden hose output which is what I'm after.

Some boats have built in deckwash pumps but I don't know what type of pump head they usually use. Centrifugal, single or multiple diaphragm, rubber impeller or gear pump. Or maybe something else.

That's why I wrote about the Whale Gulper that they are good-and long lasting pumps but not a lot of pressure, if I would like to install something like that, I think that I would go for a Jabsco Par Max drinking waterpump with a good-and easy to clean filter on the inlet side.

I'm sure there will be other brands of pumps that are just as good.

Peter.

Jun 20, 2017 17:33:08 GMT @magnetman said:

I found a Johnson Aquajet domestic pump in a bin a while ago (to be exact a bloke was about to put it in the bin and I said "can I have that". He said it was a pressure switch failure. The pump seems to work but is missing the clip-in hose connectors. I'm not sure what they are called - there is a sliding bit which goes up and you pull the connector fitting out. Would be good if I could get two of these so I can try it, if that's the sort of pump I need.

As you don't need the pressure switch, that sounds like just the sort of pump that would do the trick for you.

Peter.