Tap vs RO water

Tap water is okay in some areas....SOme people will test it for nitrates, and chlorine, but if nothing is there...some people will use it, although its more of a risk, sometimes you will get bad algaes that will grow. And other things, but RO is just very clean and is no risks really involved in it...I know a few people that use tap, and they have very nice tanks.

 

The impurities in tap water vary from place to place – as a general rule of thumb tap water is a disaster for tanks. Some well water can be real nice tho – but after a rainy season it changes and comes up crap, so lets rule out tap from the get go.

Reverse Osmosis is a technique of removing the impurities from tap water (already sounding good isn’t’ it?) De-Ionization furthers this process with a resin which exchanges the ions in the water (iron, magnesium, copper, nitrate, sulfate etc).

For all you high schoolers studying for your SAT’s…….
In a nut shell, RO is to water what cable is to an antenna, RO/DI is to RO what HD TV is to cable.

 

Say wwhhatt?? im confused on this one...haha, is it an SAT question?

 

When I took my CPA exam that was the extra credit -- yup, that's right Certified Pain in the Ass... but you already knew that

 

haha! my bro has been taking them...all of those CPA exams..So i am just curios on what to start studying for..haha

 

Can anybody tell me what they think of this model? I realise the specture models are better.....but I dont see myself shelling out that much money right now. I dont have much knowledge of these devices but it seems to me this is a good choice.
75 GPD RO/DI 5 Stage Standard System - English

 

It's an ok unit, but for that $159, you're going to be paying more in maintenance costs over the long run. A $199 CSP-DI will do you much better.

 

$159 and no TDS meter, no pressure gauge, no adjustable or capillary tube flow restrictor, no tested membrane, no reef specific DI resin, only a 5 micron prefilter.....
Look what that extra $40 gets you with the CSP-DI not to mention a lower operating cost since it will be more efficient and last longer.
Tested membranes usually produce a couple percent better TDS readings and a little known rule of thumb says for every 2% you increase the RO efficiency you DOUBLE the life of your DI resin. Add to that the SilicaBuster DI resin will already last 30% longer than any other right out of teh box on anyones unit that means your cost of operation and replacements is much lower.
Don't look at initial cost alone, look at what it will cost you to operate and maintain it over a couple years, thats where Spectrapure shines.

 

You must have a replaceable capillary restrictor. If it is adjustable thats even better. Membrane, membrane, membrane. If you buy a cheap membrane you might as well use the tap water. Because pretty soon that's what you will be getting anyway, if you get any water to come out of it all that is.

 

BRS uses Dow Filmtec 75 GPD membranes which are the standard of the industry and very good. Spectrapure uses the same membrane but goes a few steps further. For starters the treat all their membranes with a special proprietary process which history has shown increase their rejection rate or removal efficiency, often dramatically. Then they either batch or spot test them in the case of their normal membranes to ensure they meet their standards or they individually hand test them and guarantee their efficiency at better than 98% in the case of the Select membranes.
My personal system is running at 99.35% rejection still after over two years of heavy use. That extra efficiency really goes a long way for DI life and water quality.