2.5 gallon plastic Hudson sprayer with a pump handle that will mount the spray arm. You can bathe with it, wash dishes put out fires etc... Cheap at twice the price (and they’re under $20).
Spray paint one black and leave it in sun for a while for hot water.
https://www.amazon.com/LifeStraw-LSPHF017-Personal-Water-Filter/dp/B006QF3TW4
Hudson Sprayer
Plastic - https://www.amazon.com/Hudson-30193-Favorite-Eliminator-Sprayer/dp/B000WEIJSE
or
Stainless - https://www.amazon.com/Hudson-91703-Industro-Sprayer-Stainless/dp/B001FX1V8Q
+1.