HOWTO have water for emergencies

A good and I hope safe way to store drinking water at home: use your bathtub
and big garbage bags. It requires patience, 2 people will do it better. For
our bathtub we needed 3 x 90L garbage bags and a few pigtails (other ways of
closing them?)

1. Start by putting some COLD water (make sure your gas boiler is off) inside
the bathtub, may be about 10cm. You do clean it regularly, so it is clean,
right? If not, clean it first. Yes, put the plug in.

2. Put one big garbage bag to the left and start filling it up with COLD
water; use the shower hose, possibly unscrewing the head for faster filling.
Fill it up until it is 20-30cm high. Have somebody to hold it while you do
next step.

3. Put one garbage bag to the right and start filling it up until it is 20-30
cm high; Have somebody hold it.

4. Put a third bag IN BETWEEN the two bags, squeeze it if necessary and start
filling it up, occasionally shaking all bags to get them to align tight. Fill
it up until it is as high as the side bags.

5. Continue filling up all bags in turn and if the water level inside them
gets a lot higher than the outside (the initial 10cm you put in the bathtub
have been squeezed up), put some water outside, around the bags (inside the
bathtub).

6. You should end up about 10cm below the bathtub rim. The water level in all
bags and outside of the bathtub should be about the same. Tie the bags
securely (e.g. with pigtails). If you have bathtub mat (お風呂マット), cover
the whole enchilada and you are ready!