Salutations,
[In a recent letter to SurvivalBlog,] Jeff in Ohio mentioned filling the toilet tank with water in order to flush it, however, this is not necessary. You can flush by pouring about a gallon directly into the bowl. (Don’t dribble it in, but also don’t get carried away and slosh it in at once . . . unless you really want to use more water to mop the floor.) I learned this from my military service in Okinawa in the late 70s where we had water rationing with running water only every other day. On water days we filled 55-gallon drums with water and then used one-gallon coffee cans to flush the rest of the time. (If you live in an area that tends to lose power, you do fill your bathtubs with water prior to storm onsets, right?)
Give it a try today, for the sake of familiarity. There’s nothing like indoor plumbing, until you lose it. – Home’s Cool Mom