Plumbers Unions vs. Waterless Urinals

From his point of view, there was a clear explanation for the plumbers resistance: It drained their wallets.

Plumbers dont like the waterless urinal because it cuts down on their work tremendously, he says. Theres no more piping to install, and the urinals have no moving parts to repair.

Source:
http://reason.com/blog/2010/06/24/plumbers-unions-vs-waterless-u

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