re:flushing toilets by pouring water directly in the bowl... I ran a basic hurricane preparation lab for my students for many years, and one area that got a lot of comments from students was when I challenged them to flush their toilets by slowly pouring water in a toilet bowl... to conserve water and not fill the tank... that and adding 8drops of bleach per gallon of water to help disinfect still produces a lot of comments when I see former students... I have an on site shallow well, but still place a 33 gal plastic trash can in the shower and fill with a hand wand for shower and flushing use... it still gives me access to the shower's drain