Ro/di ???

[JayLloyd73]

I can get an Reverse Osmosis Unit from home depot. My question is what importance does a DI unit play what does it do? Will a RO unit alone get rid of everything?

[cuttingras]

Not sure if this will help you, but, I found a web site. This guy explains EVERYTHING! I've learned a lot reading this! (and 3reef too!)

Reefkeeper's FAQ

Linda

[Kentanner11]

I am personally not going to use any RO/Di. My LFS owner doesnt use it at her house, and I am not going to either. There are many expences to reef keeping!

[cuttingras]

I live in a small southern town, pop. 2600, and the water quality here is horrible. Algea Blooms from you know where!!! I asked the guy who does the treament stuff for a copy of recent testing results...he they don't keep them......... Also, told me the water quality is really good.....hmmmmmmm

[Tanked001]

Originally Posted by JayLloyd73

I can get an Reverse Osmosis Unit from home depot. My question is what importance does a DI unit play what does it do? Will a RO unit alone get rid of everything?

I have used a RO unit from home depot for over a year and it has worked well for me.... but my tap is some of the best water in the world, so I have been told... Chicago water! It's a 3 stage with a 2.5 gal reservoir and nice chrome outlet... I do detect a slight amount of nitrates in the RO water that worried me about build up from top offs but my NO3 never has gone over 5mg/l.... I do use Nitrate removal media about every 3 months tho. I have just recently upgraded tho to a 4 stage RO/DI unit with an auto top off system... Now I just tested that RO/DI water and the NO3 is absolutely 0. So the HD unit will do but the 4 stage RO/DI will do better.

As far as using straight tap... lol Why take that chance? I know I wouldn't with over $5k worth of coral! BTW I love my coral and fish even tho they don't always love me back...lol

[JayLloyd73]

Nitrates are no worry in my aquarium as i have a DIY coil denitrator and it works perfect always right at 0 nitrates. Was more concerned with phosphates and metals and stuff like that. Thanks for the responses.

[the_h2o_guru]

JayLloyd73,

A DI will take out any phosphates, dissolved metals or anything else like that out of your water. A RO unit alone cannot take out everything by itself. The DI after the RO process will.