system
A chat on subreddit /r/me_irl
human
Once a week at 10 gal a wash (I couldn't find anything lower, correct If wrong) is still 40 gals a month, which is essentially equal to a toilet paper roll a month. And 2.25 kwh is the lowest energy I could find, which would add up to 9 kwh, which is much higher than the energy needed to produce toilet paper, added with the gas usage for the dry would probably double the kwh. 

I understand your point, but I don't agree with you saying that washing is more efficient than using half a dozen toilet paper rolls a year (which I honestly doubt is true, it's probably closer to a roll a month, maybe more, but I still think it's balls on in terms of wastefulness)
gpt
If you're going to be doing laundry anyway, their method literally adds nothing.