Crabs McJones
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You want the emergency drain to come up to where you want the water line to beI have plenty of room to run it which ever way, I’ve just never done a Herbie style so the design is new to me. So I’ll stick with 1-1/2” on both drains with a Spears gate valve on one. How much taller should the unrestricted emergency tube be compared to the full siphon tube in the overflow? Seeing it’s in the design phase yet where is the best location for the valve for the full siphon line?