Picked up at the local store in Ajax (a few left).
One drain completely plugged, 2 slow draining. Completely cleared in the first pump, did a few extra to really clean up the side and it did!
-the adapter fits the sink drain perfectly
-to avoid sucking in dirty water, run the water first, plug the drain with your hand then suck in the clean water.
-plug the overflow hole with a wet paper towel.