Hot goes on the left.

I always heard that there are only two things a plumber needs to know:

1. 1. Hot goes on the left

2. ((water) flows downhill.

But when you Google this phrase, you get a couple of very funny variations:

1. (water) flows downhill

2. Never, ever lick your fingers

1. (water) flows downhill

2. Don’t chew your fingernails

1. (water) flows downhill

2. Payday is Friday.

So I guess plumbers need to know four things.

This was prompted by the fact that the sink in our new kitchen at the office has the hot on the right.