I can't find what i'm looking for in the engineering stack exchange because it's all way over my head. need basic help answer the basics to get started. so maybe a link or video that helps me understand how to even ask the right question on motor needed. I'm not going to become an engineer or learn everything i simply want to understand how to solve one type of problem.
so here's my basic need:
I have a water pump bought at a store that needs to be driven by a drill. But i want to use a motor from another appliance to run the water pump so i can use my drill for other things and have the motor that runs the water pump just working on that. I took apart a spice/ coffee grinder and rewired it and hooked it up the water pump and its simply doesn't move from lack of power ( it works fine and spins fine not attached to the water pump). So how do i calculate the motor i need to run the water pump?
also i will need this calculation to serve other projects... I'm also going to want to make a yeast stirer and use the motor from an orange juicer to spin a magnet that will affect a stirer stick through a glass container to stir yeast for 24- 48 hours. Not a lot of power needed but will needed to run all day and night.
so I want to understand just the very basics i need to determine how to choose a motor or how to very simply adjust or reconfigure any motor set up (i.e. use cogs or some kind of added system of wheels to increase the motors power) to: 1) be able to run a water pump or spin anything that requires a lot of strength and can run continuously for an hour to two hours. 2) Secondly, I need to calculate and determine needs to run a motor that spins a light load but continuously for 48-72 hours without burning out.
I cant find answers on google or stack exchange because when i ask the question i get a ton of irrelevant or very complex answers. i'd like help in getting enough info to keep my projects going without having to study engineering for weeks. i dont need to understand every single thing but enough to get these jobs done and repeat the process for similar future projects. Thank you!