How I plumbed the sink

This setup enables you to easily switch between two water supplies, for use away or at home. The female garden hose adapter under the faucet can be connected to tubing that leads to a foot pump as shown, or it can connect to a garden hose and outdoor faucet. I bought the Whale Babyfoot galley pump online for $50. I found the rest of the items at a local home center for about $100.