Many people have made DIY handwash stations. This is my version. Cost less than $10 but I had the copper parts in my "I-live-too-damn-far-from-a-hardware-store" stash. I used a cheap fuel pump to move the water. I have access to an aluminum fab shop so I made a bracket for the pump and a clip for the soap. The clip keeps the soap out of the dirt. I put a joint in the upright to make it taller so that I didn't need to bend over as much. Don't go too tall or the cheap pump won't be able to effectively lift much water against gravity. The copper upright is held on the bucket with a clamp. Everything fits in the bucket and is secured with a lid. Tip: Warm water in the bucket on a cold morning is really nice.