plumbable
/ˈplʌməbəl/Definitions
1. adjective
capable of being plumbed or supplied with a water pipe or pipes
“The new house is plumbable, making it easy to connect to the water supply.”
2. noun
the state of being capable of being plumbed or supplied with a water pipe or pipes
“The plumbability of the new house made it a desirable purchase for many families.”