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Will lowering the psi on my r/o system make it be more efficient?

  • Yes, there would be less waste water.

    Votes: 0 0.0%
  • No, there will be no advantage gained.

    Votes: 2 66.7%
  • It will be the same.

    Votes: 1 33.3%

Reverse Osmosis low pressure

593 Views 4 Replies 3 Participants Last post by  Da Plant Man
Alright, so my Dad and I are having a fun debate on over if you lower the PSI you will get less waste water over the amount used with "normal" psi (70psi). He says that instead of 200gpd I will get 100gpd, but instead of 400 gallons of water wasted to get that 200 gallons of r/o water. If it is lower psi you will get 100gpd with only 100 gallons of water wasted. What do you guys think? Personally I see no way how that would work but my dad thinks different.

Opinions? What do you think?
1 - 5 of 5 Posts
I think you actually waste 4 gallons to get 1 gallon. Also over the long run you won't need a full 100 or 200 gpd so does the pressure even matter?
Really though, it seems like it would be the same either way. I think temp matters more in RO or RODI production ;)
Higher pressure is supposed to be more efficient on the membranes. Most setups shoudl tell you their ideal PSI.
I got mine from Paul/onefang/deleted_user6, it had no manual or anything like that, that is what I thought though. I will have to tell my father :)
1 - 5 of 5 Posts
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