Diy Outdoor Sink . Steps to build an outdoor kitchen: Keeping outdoor junk from getting into the outdoor sink (leaves, spiders looking for a good spot to build a web, etc.). Pin by Diana Lowery on farmhouse decor Diy outdoor kitchen, Outdoor from www.pinterest.com I drilled a hole in the bottom and added about 3 of rocks inside. This diy portable sink lets you easily wash your hands or dishes outdoors without the need for a power source. The space immediately to the left of our grill being a primo spot for wanting extra counter space while grilling!