I also used a separate aerator pump at the end of each leg then just plumbed it into the same drain as the ski locker bag. It's really east to do. I also just tapped into the existing wiring that was there so when you flip the switch to fill and empty the ski locker the IBS also fills and empties. It's really a must have for the boat. My biggest issue with the IBS is that it popped my cup holders the first time I filled it and its a pain in the arss to keep up in the nose so that doesn't happen.