The highest point of the trap must be at least 2 inches below the unit's black drain port.
Clean the mounting port with a lint-free wipe and isopropyl alcohol. The manual states: "Even a single grain of sand can cause a 0.5% full-scale error." Apply a thin layer of thread sealant (Loctite 567, specifically) to the male threads of the TS1162. Do not use PTFE tape; it lubricates too much and will throw off your torque reading. ts1162 installation manual exclusive