TM 10-6640-215-13 4-39.  REMOVE/INSTALL COMPONENTS OF WATER SYSTEM - continued. 3. Remove Sink Drain.  See figure 4-31. a. Disconnect union at top of sink trap. b. Pop up the form fitting sink from countertop. c. Remove sink drain from sink. 4. Remove Faucet Assembly.  See figure 4-31. a. Set switch on pump controller to OFF.  Open faucet to relieve water pressure. b. With sink removed from countertop, remove faucet mounting nut. c. Loosen hose clamp under the faucet and pull off hose from barb fitting. d. Carefully pull the defective faucet out of the faucet mount.  Place faucet and attached fittings on a working surface. e. Remove pipe fittings from faucet. 5. Remove Eyewash.  See figure 4-31. a. Set switch on pump controller to OFF.  Actuate eyewash to relieve water pressure. b. With sink removed from countertop, remove eyewash mounting nut. c. Loosen hose clamp under eyewash and remove hose. d. Remove eyewash from countertop. e. Remove pipe fittings from eyewash. INSTALLATION 1. Install Water Filter.  See figure 4-29. a. Install filter element into bowl.  Screw bowl into filter cover. b. Install water filter to retaining bolt. c. Open isolation valves on each side of water filter. 4-96