I'm still using the mouth/syphon method, but it's getting old. I have looked at Lowe's and Home Depot for a cheap "in-line", but no luck yet. There are plenty of the pond "sump" type pumps out there, but I'm looking for one that you can put a hose on one end, and another on the other end, and not have to submerge the pump. And, BTW, they are out there, I'm just trying not to spend $300 to get it. Surely there are some cheaper models somewhere.