Reverse Osmosis Filter Question

[Alexx]

Hi,
I have some questions about water filtration.
I see this filter on ebay $80 new and I am not sure if this would be good to use or if I need to buy a more expensive one:
https://www.ebay.com/p/5-Stage-Unde.../27024270765?iid=253813847182&chn=ps&thm=1000

I also see this on craigslist but is used and costs $80
https://sfbay.craigslist.org/sfc/for/d/san-francisco-reverse-osmosis-filter/6784260562.html

 

[ashburn2k]

Both doesn’t qualify, but you can buy either and add DI filter yourself.


Sent from my iPhone using Tapatalk Pro

 

[roostertech]

I like BRS's RODI system.

https://www.bulkreefsupply.com/4-stage-value-plus-ro-di-system-bulk-reef-supply.html

Easy to maintain and reliable.
Pressure gauge is very helpful to evaluate if you need to replace filter
TDS meter to double check water quality at input and output

 

[Vincerama2]

I don't see anything wrong with the RO unit from eBay. Yes, I would add a DI cartridge to it, but it looks fine.

Mine is from AquaSafe Canada, and it's been rebuilt and added to over the years (20 years). It's pretty simple stuff actually.
I used to buy sealed DI units, but swapped over to a refillable cannister (maybe from BRS, I don't recall) so I can replace the DI beads for slightly cheaper.

My filters come out covered in crap and slime...the supply to my house is gross (and 70+ years old).

I'm also an idiot because I bought a booster pump for my unit and it turns out my water pressure is already 80 psi.

V

 

[xcaret]

I don't see anything wrong with the RO unit from eBay. Yes, I would add a DI cartridge to it, but it looks fine.

Mine is from AquaSafe Canada, and it's been rebuilt and added to over the years (20 years). It's pretty simple stuff actually.
I used to buy sealed DI units, but swapped over to a refillable cannister (maybe from BRS, I don't recall) so I can replace the DI beads for slightly cheaper.

My filters come out covered in crap and slime...the supply to my house is gross (and 70+ years old).

I'm also an idiot because I bought a booster pump for my unit and it turns out my water pressure is already 80 psi.

V

A booster pump is handy if you install a second membrane; if the pressure at the new membrane is low then defeats its purpose entirely as you will have more waste water.