Question

what does "Here’s a faucet in the basement / that had dripped one drop all year since he fixed it, we can’t find it / without wearing scuba gear." mean?

Answer 1

You can't find the faucet without scuba gear, probably means the faucet is underwater. 

Answer 2

The answer is the facucet has been dripping that much that there is alot of water, it is impossible to find it if they do not wear a scuba gear.

Step-by-step explanation:

The technique used in this work is Hyperbole, where the author exagerates to emphasis in that ponit of the huge quantity of water. This technique is commonly used in literature to call reader's attention.