please share. I've seen plenty of youtube videos shared here.I found a YouTube vid of a way someone incorporated one into their return with a ball valve that allowed them to cut on and off (I'm sure with today's tech, it's possible to be automated). Just didn't know 100% on ability to share or if would violate any rules. If acceptable let me know and id be glad to share the link. Aside from the valve and some airline and fittings, required no extra equipment.