Where does one get plumbing supplies for mobile outdoor patio sinks?

This is a small, mobile sink that hooks up to the outside hose for the water.

Answers:
This question has gone a week without an answer. If this is a prebuilt unit that you purchases form a retail store, there should be an owners manual that will tell you how to hook it up. Any hardware store should have the parts.

If this is something you are going to design and construct using an old sink, your local hardware store, Lowe's, or Home Depot will have the advice and parts necessary to make all of the connections.

I fabricated an outside sink a few years ago and now find it invaluable.

Good luck with your project.

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