Before Installation, Remove Impurities or Scale from the Bottom of the Faucet. the 2 Feet of the Spool Are Placed at the Bottom of the Groove. If It Can Be Moved, It Is Installed. in Order to Prevent the 2 Feet of the Valve Core from Running out of the Groove, We Should Press down the Valve Core with One Hand and Tighten the Gland with the Other Hand.
