shower notes

Some people take 5 minute showers.

Then there are those of us who take 20 minute showers.

One solution to save hot water energy there is to turn the shower on, wet yourself, turn the shower off, soap and shampoo, turn the shower back on to rinse.

But it is physically and psychologically more comfortable to have the shower on.

So is there a shower unit that recycles the warm water such that during most of the shower warm water that would otherwise go down the drain instead comes back out the shower head again? This would mean though to some extent such water would become increasingly more soapy. But then at the end for a minute you would would do a final rinse with clean water.

Though I guess if there was less convective cool air flow inthe shower turning off the shower while soaping and shampooing would be less uncomfortable.

David

I did not do the 'inthe' typo, a hacker did. I wrote 'in the' and someone with good divination ability could verify that a hacker made the change. I do very few typos when going reasonably slow, and I know my own typos, and such ability to spot hacker changes is an indication of smart special ability (not photographic memory special ability though).

i.e. my non-divination (though I have some divination ability too) ability to spot such tampering of my writing

The Australian Army has a portable shower block that uses a similar system. The drain water is passed through a series of filters, culminating in a continuous micro-filtration unit that removes 99.99% of bacteria and a most virus types. The water is then reused.

says...

Actually, some older showers used to work off a similar principle. You stood in a basin of hot water and used some kind of manual pump to pull the water up through the shower head. today, one could certainly fill one's bathtub partially full of hot water and use any recirculating water pump, such as the kind that one finds for an evaporative cooler or a sump pump to continuously spray. I can't vouch for how comfortable it would be though.

the way they work is the warm waste water preheats the cold feed to the shower. Warming that means less hot needs to be added. Payback is impressive.

Yeah, yeah, and your dog ate your homework. I'm sure someone took the time and trouble to hack your password just to remove the space between two words, so you can be accosted by a few online spelling nazis.

If you want to save water, put in a shower head with a valve and a chain. You have to pull the chain to get water. For a visual design, watch any episode of the old series 'M*A*S*H' that had a shower scene.

Also invest in a small space heater. People tend to stand under hot water when it is cold in the house to warm up. They are avoiding stepping out of that nice, comfortable hot shower to be blasted by cold air. If the bathroom (a relatively small space to heat) is nice and toasty already, people will tend to spend less time in the shower, since they won't be avoiding the chill effect. I once rented a house with a gas heater in the bathroom wall - the savings in water more than made up for what I burned in gas to heat the bathroom.