Very true and the air bubble s Could happen with an upward slope. But not with the downward slope. I would go with a. 45 out of the overflow and bring it through the wall. Then 45again down in to the sump. It will work perfectly. Go with herbie, it's awesome
You should put two another one above it. It's called the her big method. This way if the one gets clogged, the other one will work. Also you don't have to have timing down perfect to match the return pump. Just Google herbie method and you'll find details
Hey this is my first post (just sayin). I just installed the herbie method on my 75 gallon method and I wanna say good choice. It is completely silent and works great. To answer your question, I'm Goin to go with yes. As long as it's no going up and does eventually drop down, it will work...
