I recently bought a 5 stage ro/di unit from the filter guys. Great system. A buddy of mine is trying to sell me http://www.espring.com/ filter system saying it's better and drinkable compared to my ro/di unit due to leaving in good minerals and certain nsf standards. anyone hear of the two or have facts as to why one is better than the other that i'm missing here?
water filtration ro/di
- Thread starter mantis32
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virginiadiver69
New member
I have the same unit from filterguys. I looked at the other you mentioned and think it would be good for drinking water but doubt it for pure RO/DI water for your tank. Besides, the water from the RO output is just as good as the purifier you mentioned.
poppin_fresh
New member
A normal RO unit uses carbon blocks to remove certain compounds Most tap filters (Britta, etc.) only use carbon in their process. This coupled with the UV probably does make good and safe drinking water.
I would be curious to see a tds reading from that system. An RO system will reject far more compounds than normal carbon will. I think that from reading I have done, the body intakes very little nutrients from the water we drink.
I would be curious to see a tds reading from that system. An RO system will reject far more compounds than normal carbon will. I think that from reading I have done, the body intakes very little nutrients from the water we drink.
AZDesertRat
In Memoriam
They are two entirely different things. One, the RO/DI removes everything down to the molecular level and the other removes very little and makes water taste good. What he is showing you has a little bit of carbon, probably a silver impregnated media of some sort and a UV sterilizer light in it. The carbon makes it taste good but does absolutely nothing for TDS removal, the silver media attracts some of the heavy metals and the UV inactivates viruses and parasites. Nothing actually strains or filters the water down to the submicron level.
Do you drink your ro/di water? I read this http://www.finishing.com/156/65.shtml and stopped drinking mine.
So espring = drinking
ro/di filter guys = fishtank and water not safe to drink on a DAILY basis.
So espring = drinking
ro/di filter guys = fishtank and water not safe to drink on a DAILY basis.
drummereef
Team RC
I only drink water from the RO stage. I leave the DI for the fishies. 
virginiadiver69
New member
There is a lot of back and forth about drinking ro/do water, something about it stripping beneficial nutrients from the body. It seems to me a person would have to drink WAY more ro/do water than the body could even handle on a daily basis for health concerns to be a factor.
I think just drinking the ro water would taste better.
I think just drinking the ro water would taste better.
aquarius77
In Memoriam
I drink about a half a gallon of RO water every day. That link is refering to the DI water, i would not drink that either.
AZDesertRat
In Memoriam
RO is what you drink and RO/DI is what you put in the tank. The brine or waste is what goes down the drain, its the concentrated waste that flushes the RO membrane to keep it functional.
There is no hard scientific evidence that drinking DI water is bad for you but it tastes awful bland and is really a waste as you want to drink water that tastes good so stick with RO for that.
There is no hard scientific evidence that drinking DI water is bad for you but it tastes awful bland and is really a waste as you want to drink water that tastes good so stick with RO for that.
jdieck
New member
To answer your wuestion, water after the RO membrane and before the DI is as good to drink as the one from the other filter.
filterguys should be able to put together for you a kit for drinking water that will allow for the unit you purchased to provide for both.
The kit consists of ways to "T" off water from the line in between the membrane and the DI cartridge, ana activated carbon cartridge and a pressurized storage tank to store drinkable water so you get good fast "glass" filling rate.
Here is how a system that provides both will work.
The drawing on the left shall be close to what you purchased, the drawing on the right has the drinking portion incorporated into it.
I actually bought the six stage one with the drawing on the right. I didn't know what I was getting into at the time, so I modified it and turned it into the drawing on the left under the assumption that highly filtered water was a bad thing. I think I'm going to move forward bringing back the 6 stage and just mixing some tap water in every now and then to my daily dose of city injected chemicals.
jdieck
New member
Actually the drinking water is less filtered. Notice in the drawing on the right that the drinking water does not pass trough the DI cartridge but insted uses another carbon cartridge (activated carbon) to further improve the taste. THis does not require any tap water addition. THe taste is very good and the water still has enough electrolythes. By the way, many of the purified drinking water that you buy bottled uses this same procedure.
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