Which lifting system for the attic?

So if it is only for the washing machine, you can place a simple bin next to the machine, put a simple protective water pump inside, and then connect it to the wastewater pipe with a hose/pipe. It is simple and quite inexpensive. However, the diameter of the bin should be large enough so that it does not block the pump's float switch.

If it is *only* about the washing machine, a pedestal on which it is placed is often sufficient

Construction expert on the go