Half a croissant, on a plate, with a sign in front of it saying '50c'
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Eliminate Cisterns

This is nearly the 21st century! Why are we still installing cisterns?
 
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In large buildings such as communal workplaces and multi-storey rigidly defined behavioural spaces, there are often toilets – usually for separate sexes, but otherwise largely similar. These toilets have what amounts to a cistern each.

The purpose of a cistern on a toilet is to use some latent energy of gravity vs height to impart force into the water, so that flushing is more efficacious. However, wouldn’t it be better to dispense with the cistern altogether and run the water feed straight into a pump to give the same amount of force, but which can be driven for custom durations from very short, through the normals, up to super long, as needed (or wanted).

Ian Tindale, Dec 06 2017

Rats in your bowl https://www.youtube...watch?v=0t2VPBF6Kp4
Not really related but something to look out for [mylodon, Dec 06 2017]

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       So if the power goes off you can't flush the toilet?
normzone, Dec 06 2017
  

       Cisterns make sense as a water conservation measure if they are positioned below or beside a washbasin, such that waste water from the basin is retained in the cistern for use in flushing the WC.
8th of 7, Dec 06 2017
  

       And I thought toilet flushing was faith based backed by the cistern monks I heavily donate to every morning.
bigsleep, Dec 06 2017
  

       You need to cut down on the Benedictines at bedtime.
8th of 7, Dec 06 2017
  

       I a large building, you could use just one cistern on the roof to flush all the toilets. But replacing each cistern (passive) with a pump (active) is just silly. We're trying to be MORE energy efficient, not LESS.
neutrinos_shadow, Dec 06 2017
  

       Can you pump water, out of your mains-driven plumbing network, faster then what you are given from your mains pressure? Would that not risk sucking water out of the toilets nearby?
mylodon, Dec 06 2017
  

       In that case, until the Energy Police arrive, you'll just have to make a cistern's arrest ...
8th of 7, Dec 06 2017
  

       Not while I'm smoking a bowel.
mylodon, Dec 06 2017
  

       Brothers and cisterns have I none, but that man's father is my father's son.
xenzag, Dec 07 2017
  

       Is he a plumber, then ?
8th of 7, Dec 07 2017
  

       Don't eliminate cisterns, but make sure transterns have equal bathroom rights.
pertinax, Dec 07 2017
  

       And what about those who are bidet-curious, eh ?
8th of 7, Dec 07 2017
  

       What hose.
mylodon, Dec 07 2017
  

       Water wasn't nature's choice so still stepping in the wrong direction.
wjt, Dec 07 2017
  
      
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