I'm going to be building a new rack in a few days because my little rats are breeding so well but I wanted to get opinions on the RBI drinking valve. In my other racks I used the Edstrom valves and never had an issue but the RBI are cheaper and if work well could save a few bucks. I wouldn't usually go the cheaper route but I have had good experiences with RBI products. I just couldn't find much about them on here.