![]() And you can run both drains without vavling back the drains at all if you want. Which it sounds like you were looking for in the first place. The great thing about the design of the herbie is the great amount of flow potential, and almost no noise. If you're adding Y's and opening both pipes to air, then you're losing flow potential, as well as the safety aspects of the system, and don't have a herbie style drain at all. I'm right down the road from you, if you need a hand getting some of that plumbing done, or just another set of eyes to check out what you have. The flow through the drains and from the return should be adjusted so that there is just a small amount of water running through the open (durso) standpipe. In the event of a clog in the main drain this needs to flow as much water as possible. Its not necessary, and I don't think usually recommended to valve this drain. The second drain should be a durso standpipe vented with an airline or valve positioned right before the max water level of the tank. I actually like gate valves because they're easier to adjust, but a ball valve will work. You control the amount of water through the drain and the siphon effect with a valve below the drain. One of the drains should be closed and running full siphon. ![]() Your 2 independent drains are a good start. ![]() With the 2 holes you can have a herbie, but its not a herbie until its plumbed correctly. This will be dry until the unlikely chance its needed. The only difference between a herbie and a bean animal is the addition of a third drain strictly for a worse case scenario situation. How do you have a knockoff bean animal with only 2 drains? LOL. ![]()
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