Ro/di Unit?

[timpetty]

Hey everyone. Just wondering if anyone had any suggestions on a RO/DI unit for me. I have a small 24gal tank so i dont need anything that makes large amounts of water. Any brands to look out for? Is it even worth the cost with such a small tank and being able to buy RO/DI water 10mins away for only about $2 for 5gal??? Thanks!!

 

[SkiFletch]

A tank that size would prolly go through a gallon or two a week for topoff and 5 gals every 2 weeks for water changes, so prolly around 10gal ($4) every 2 weeks, aka $2/week. In the course of a year, an RO unit would pay for itself... Look for 36 or 50GPD RO units. Ebay, buckeyefieldsupply.com are my personal favorite for finding RO units

 

[timpetty]

Thanks ski. Im seeing all different types of units on the market. Everything from 2 to 4 stage filtrations. I understand 4 stage is better than 2 but what is necessary for reef tanks? I would assume its the 4 stage since that is RO/DI instead of just RO but is it necessary? Thanks

 

[SkiFletch]

IMHO, a DI stage is not necessary for our applications. What's more necessary is a flush kit and TDS meter

 

[timpetty]

Thanks again ski. Any recommendations on brands?

 

[SkiFletch]

Thanks again ski. Any recommendations on brands?

Any one that comes with a TFC (thin film composite) membrane. You can even use drinking water RO units. TFC membranes have to be made to exacting specs, so they're almoast all good for use .