Questions on Countertop Reverse Osmosis Water Dispenser

Billy the Mountain

Billy the Mountain

Well-Known Member
yinyang814

yinyang814

Well-Known Member
pahpah-cee said:
Check these out. Buy a float valve and put it in a 5 gallon bucket. Then you can turn it on and walk away as it SLOWLY fills the container.

View attachment 5315443


disclaimer; I didn’t do much research.There may be better or cheaper options.
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Agreed. I started out a few years ago using a countertop unit and as soon as I tried growing more than 1-2 plants, I upgraded to an AquaticLife 5-stage RO system connected to a tote with a float valve. Now the countertop unit is only used to make drinking water (it has a remineralization filter at the end).
 
hotrodharley

hotrodharley

Well-Known Member
pahpah-cee said:
Check these out. Buy a float valve and put it in a 5 gallon bucket. Then you can turn it on and walk away as it SLOWLY fills the container.

View attachment 5315443


disclaimer; I didn’t do much research.There may be better or cheaper options.
Click to expand...
Are you aware that reverse osmosis wastes tons of water that go straight to sewage or septic? They’re wasteful as hell.
 
hotrodharley

hotrodharley

Well-Known Member
“
Reverse Osmosis Waste Water Ratio
For every gallon of purified water your reverse osmosis system produces, it will likely have used roughly four gallons.
There are several factors affecting exactly how much water your reverse osmosis system “wastes,” though. One of the most important is water pressure; anything below 35-40 PSI will be less efficient.”

Seriously doubting the effectiveness of a drip type RO utilizing only hydrostatic pressure.
 
Billy the Mountain

Billy the Mountain

Well-Known Member
hotrodharley said:
“
Reverse Osmosis Waste Water Ratio
For every gallon of purified water your reverse osmosis system produces, it will likely have used roughly four gallons.
There are several factors affecting exactly how much water your reverse osmosis system “wastes,” though. One of the most important is water pressure; anything below 35-40 PSI will be less efficient.”

Seriously doubting the effectiveness of a drip type RO utilizing only hydrostatic pressure.
Click to expand...
You're right, most RO filters are 1:2 or 1:3 treated to rejected water and are very wasteful.
Filter technology has improved, and there are now some 1:1 RO filters now available but they're, as expected, much more expensive.
 
P

pahpah-cee

Well-Known Member
hotrodharley said:
Are you aware that reverse osmosis wastes tons of water that go straight to sewage or septic? They’re wasteful as hell.
Click to expand...
Totally! I only use one for my drinking water. My plants get tap water. My water has high alkalinity which is difficult to manage. It’s impossible for hydro growers to use. Most growers in SoCal are running RO. I get confused stares in hydro shops when I say I use tap.

in the grand scheme of things, I’m not too concerned about the wastefulness of RO with home growers. They’re not really big offenders.
 
hotrodharley

hotrodharley

Well-Known Member
pahpah-cee said:
Totally! I only use one for my drinking water. My plants get tap water. My water has high alkalinity which is difficult to manage. It’s impossible for hydro growers to use. Most growers in SoCal are running RO. I get confused stares in hydro shops when I say I use tap.

in the grand scheme of things, I’m not too concerned about the wastefulness of RO with home growers. They’re not really big offenders.
Click to expand...
Actually they’re huge offenders. But I’m from the desert southwest where water is gold.
 
beansin

beansin

Active Member
hotrodharley said:
“
Reverse Osmosis Waste Water Ratio
For every gallon of purified water your reverse osmosis system produces, it will likely have used roughly four gallons.
There are several factors affecting exactly how much water your reverse osmosis system “wastes,” though. One of the most important is water pressure; anything below 35-40 PSI will be less efficient.”

Seriously doubting the effectiveness of a drip type RO utilizing only hydrostatic pressure.
Click to expand...
the one i was looking at does 3 to 1 so every 3 gallos only 1 gallon is wasted apparently but probably wouldnt be that efficent
 
beansin

beansin

Active Member
Billy the Mountain said:
Nope

No need, since such a filter doesn't currently exist.
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from my understanding it resuses the waste water to extract as much as possable but in turn does not give zero ppm . you end up with around 50 ppm in the usable water but again it could just be marketing lies
 
S

snakedope

Well-Known Member
The math is roughly 30-40%, so yes, for every gallon you purify, the system throws 2-3 gallons.
I put the waste hose in my garden, trees and bushes seem to like it.
 
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