Hello and thank you in advance for your help

I live in canada and I have a outbuilding (garage) about 30-40ft from my home that I would like to run year around water to. Inside my outbuilding I would like hotwater and good flow. The ground is level between. I am on a trying to keep my costs down on this project, and hoping to do alot of this myself with some of my do it yourself friends that have experince with plumbing.

I would also like to install a drain of some type. I will be draning only water from fish tanks. I was thinking about digging something in my backyard to drain the water into there.

Please advice me on how to do my project.

Thank you!

how do I do this?