laundryplumbing-fixture
I've spend hours looking through various online catalogues and other sources for advice. What seems to be the most long-lasting and reliable design for systems that pump grey water from laundry tubs to home sewer systems, that do not require human intervention? (I assume that one is not allowed to mention trade names on here.)
Thanks!
You most likely will overflow the floor drain and damage your surrounding walls/floors.
As both bib and Johnny have said, the simplest way to do this is to use two separate ropes. You can either manually pull on both ropes at the same time, or the ropes can be tied together prior to each reaching its first pulley away from the wall (A & B in the image below). Alternately, as Alchymist mentioned in a comment, you can use a single rope with the middle of the rope at the wall and the two ends the attachment points at the ceiling.
Using the pulleys you already have, and keeping the location you are pulling from the same as you are currently using, you can do something like:
Pulleys A and B can be located adjacent to each other. You could, of course, use one double-pulley block for A+B. However, I assumed you would want to use the materials you already have on hand.
Best Answer
Type into your favorite computer search engine like Google "sink tray system sump pump" and you will get lots of pumps and places to buy them.