>>1641353It'll be like 165-220 gallons of liquid. Salt would be the cheapest method, but I'd rather not have that much salt water to dispose of in spring. If I can use an insulating blanket at nighttime, for the entire tunnel and barrel section, that my work.
>"just use urine," says a tiny voice in the back of my head...uhhhhhh...
>"urine freezes around 23F/-5C">"Myth Busters tried to freeze urine at 70 below and it didn’t work."...uhhhhhh...
>"you can use the urine in spring to fertilize crops"...uhhhhhh...
Halp!