11.   To remove an existing shower head, start by wrapping the jaws of a pair of channel-type pliers or an adjustable wrench with masking tape.

12.   When using an adjustable wrench make sure that the stress is on the fixed jaw, not the adjustable one.

13.   You can open the plug with an adjustable wrench.

14.   You need a pair of channel-type pliers and an adjustable wrench.