RODI Questions

[Matthias7]

i am getting ready to replace my rodi unit. My question is can I buy an eBay unit and purchase a better membrane? Or is there more to the unit then just the membrane. I use the brs di and filter components.

 

[Patpare]

I think that most RO/DI housings are pretty much all the same size!
So I'm pretty sure you can by the housing from eBay and upgrade the membrane.

 

[Matthias7]

Is there any other advantage from buying a big name brand?

 

[ZJedi945]

Is there any other advantage from buying a big name brand?

Ehhhhhhh I would say you get better filters and connections right from the start. I mean you can add those on as you go but a RO/DI system is one of those things it isn't the best to bargain hunt.

 

[Matthias7]

The more I look the more I think I will just get a spectrapure and not try to put something together doesn't look to save my money anyways

 

[ZJedi945]

Those are great to go with. I do like BRS just because they are a bit cheaper and yet still top notch.

 

[bif24701]

Is there any other advantage from buying a big name brand?

NO, nearly every membrane is a DOW. DOW makes the most, best performing, and economical. Most brands like Spectrapure just rebrand these DOW filters, they also give them a "special treatment" which is nothing more than presenting the membrane. They all perform the same, a RO marketed as 90gpd is the same as a 75gpd. It's just that the folks selling 75gpd filters give more typical performance ratings because to achieve 90gpd you need very specific parameters such as higher pressure, softened water, and very warm water.

 

[Matthias7]

NO, nearly every membrane is a DOW. DOW makes the most, best performing, and economical. Most brands like Spectrapure just rebrand these DOW filters, they also give them a "special treatment" which is nothing more than presenting the membrane. They all perform the same, a RO marketed as 90gpd is the same as a 75gpd. It's just that the folks selling 75gpd filters give more typical performance ratings because to achieve 90gpd you need very specific parameters such as higher pressure, softened water, and very warm water.

Awesome thx