Is “Plumbed” a Scrabble word?
Yes
PLUMBED
Valid in at least one Scrabble dictionary
Valid in these dictionaries
SOWPODS / CSW
Scrabble UK & International
TWL / NWL
Scrabble North America
Large English Dictionary
General English word list
Meaning of Plumbed
verb
1.To determine the depth, generally of a liquid; to sound.
2.To attach to a water supply and drain.
3.To think about or explore in depth, to get to the bottom of, especially to plumb the depths of.