Taking care of a boat involves wearing many hats.
Ensuring that every seal is done right helps make your boat seaworthy and safe.
When doing boat plumbing, use a sealing compound for threaded connections.
I use Leak Lock or similar products to ensure a good, lasting seal. It is removable but makes a firm connection.
Give it an hour or so to set up before putting water pressure on it.
Oh and pull up your pants, you’re giving plumbers a bad rap.