You can buy various foul water pumps, however the water will be pumped to a height of about the top of the machine by the machine itself, this may give you some advantage depending on where you can run the pipes.
I would break into the drain at a lower point, its a bit of work to dig the soil away, and rebuild the bricks but not a huge job.
Rick
One other consideration which nobody's mentioned - is the outhouse, or will it be, frost-protected? Otherwise you could make a mess of your machine if it freezes inside. As you're talking about pumping water uphill in some shape or form, that implies that the pipework are always going to be full of water, too.
Coupled with the difficulties already raised, isn't this the opportunity you need to suggest SWMBO takes a hike with her proposal (in the nicest possible way of course!)?
David
Do 1 and 2 forget 3 etc. If you have a tumble dryer put the washer no that for the extra height 24" below becomes 12" above. 20 feet is not that far from the drain if pipe going downhill at anything above 1 in 40. Job done.
The original query was 16 years ago, so they've probably worked it out by now.
I truly hope so!
HomeOwnersHub website is not affiliated with any of the manufacturers or service providers discussed here. All logos and trade names are the property of their respective owners.