Originally Posted by billdomb
Have always wondered just how much power is needed to feed the RO membranes. COULD it be achieved by a long hand-pump lever?
Every time you walk by, give it a few swings...??
Manual water-makers exist.
Here is on example.
But: Watermakers do not like to be operated a few swings at a time.
First few minutes does not produce good water
. You would need to work
it hard for longer periods to get drinkable water
Recently a watermaker
broke on a racing
yacht (I think it was on a volvo
ocean race), so they had to use a backup, manual watermaker
Two guys were pumping it (one pumping, one resting, taking turns).
They said it was very hard and they hardly made enough for drinking and warming up dry meals
And these are strong guys in their peak performance - professional athletes.
So, it is possible, but this is surviving situation and you would not hand pump
it to take a shower
I have energy recovery model from Spectra - it uses 240W to produce 50l/h.
I easily run it from solar
. I run it for few hours at a time every couple of days.
If there is no sun I run it next day (or shorter time).