Bidet sprayer set, T-adapter (dual-outlet angle stop), two stainless supply hoses, PTFE tape, adjustable wrench, towel, bucket.
Turn off the angle valve supplying the toilet. Flush the toilet to empty most water from the tank. Have a bucket ready to catch leftover water when you disconnect the hose.
Unscrew the hose that connects the wall water outlet to the bottom of the toilet tank. Drain remaining water into the bucket.
Wind PTFE tape clockwise around the male thread of the T-adapter for better sealing and to prevent water leaks. Do 10–15 layers of tape.
Screw the T-adapter onto the wall water outlet. Do not over-tighten to avoid cracking the thread. The T-adapter has two outlets: one for the toilet tank, one for the bidet sprayer.
Short hose: Link one outlet of the T-adapter to the toilet tank inlet.
Long sprayer hose: Attach the other outlet to the base of the handheld bidet sprayer.
Stick or drill the mounting bracket on the wall next to the toilet at a comfortable height for easy access. Hang the sprayer on the bracket when not in use.
Slowly open the angle valve to restore water flow. Let water run for 5 minutes and check all joints (T-adapter, hose ends, sprayer base).