A certain amount of messing around is necessary to get that income stream going in the first place. You're in the development phase.

I need a hand pump for a five gallon bottle of water. Is that possible to make? We'll all need those when the power goes out.

https://www.amazon.com/Brio-Universal-Manual-Drinking-Silver/dp/B01LYRC3AR/ref=sr_1_8?keywords=water%2Bjug%2Bpump%2B5%2Bgallon&qid=1636901061&qsid=146-8463833-7911008&sr=8-8&sres=B07HFPC7HB%2CB07KVDGDTN%2CB07KW4TPNG%2CB01LYRC3AR%2CB08H4WMK37%2CB08L3DGGVL%2CB00APU2Y8Q%2CB096WV7FJR%2CB07YQXTLCZ%2CB07QZJXPX1%2CB07Y4D3P1J%2CB092311Y4Y%2CB099N7NJC2%2CB07TRP3N5X%2CB07RXH1TNB%2CB07NRYR6B6%2CB092379FY9%2CB083JPY6BF%2CB08HN56D5H%2CB07Y4S74RJ&srpt=WATER_DISPENSER&th=1