Is it normal to work out with 2 gallon bottles of water?
I can't afford a gym membership but my parents buy seven 1-gallon bottles of water every week. So in the garage I put two 1-gallon bottles in my right hand while standing and keeping my bicep vertical then I do bicep curls with them. I would estimate two 1-gallon bottles to weigh about 17 pounds. It's not a heavy weight but I find this is better for building endurance. Using this weight I can do around 7 bicep curls with one hand before getting sore on that arm. I then do it using my left hand. Is this a good workout?