reverse osmosis

Whole House Water Treatment

Nadia from Bettendorf Writes:

I was very interested in your site and am looking for an advice. I am currently reseaching two companies and their products but finding it very difficult to compare them. I would like to install a RO system for drinking water. I would also like to remove clorine and hardness from all the water in the house. I contacted Eco water and was advised an RO system with 3 gal tank and a water conditioner/purifier model ERR 3502

http://ecowater.com/systemERR3502R30.php

There are 6 of us in the house. I am wondering if 3 gal worth of drinking water is enough and if this purifier is big enough for us. It has coconut shell carbon filter.
The other salesman I talked to was from Culligan. He recommended 9 gal RO system. like this one:

http://www.culligan.com/en/products/drinking-water-systems/aqua-cleer/

He did not even want to go the whole system route. I need to check with him but I think he thought the amount of carbon that is included in those 2-in-1  (so to speak )systems would not be adequate. He said we would need a softner and a carbon filter tank – seems like a lot.
My question is what RO tank we need and if this coconut shell filter is enough.
The eco-water system carbon filter needs to be replaced every year for $100 while Culligan lasts 2-3 years but the price is $200 plus labor. So they are comparable this way.
I do not know why Culligan did not recommend this system

http://www.culligan.com/en/products/whole-house-water-filters/total-home/

Even though he was showing me the picture of Gold seried water softener that looks exactly like this one.  I think he was afraid that we would be going thru salt and carbon too fast.

Also, how would I compare water softners (valve, salt, etc) I am not sure what to look at.

I really appreciate your advice in this matter. I have kids who cannot tolerate bad water so I am trying to get the most bang for my $.

Hi Nadia

Thank you for writing in.

First off, since you mentioned chlorinated water, I’ll assume that you’re on municipal water.  If that’s not the case, please write back and let me know, as my answer will change.

My thoughts on reverse osmosis systems are that they are an absolute last resort device.  I’ve only recommended them a few times, like a woman in Manitoba who had high levels of uranium in her drinking water, for example.

This is because reverse osmosis is very expensive, produces only a small amount of water (some systems reject up to 50% of the water that goes into them), and produces water that is lower in pH and had no minerals which most health professionals agree is part of a healthy diet.

If you like the taste of de-mineralized water, then by all means purchase a reverse osmosis system.  You will probably need one larger than 3 gallons for a 6 person home, as it will produce the three gallons slowly.  If you drain the storage tank filling water bottles, or cooking a large pot of pasta, it will recover slowly.

Contrary to what water stores may have you believe, here in North America municipally treated water is safe to drink and use right out of the tap.  The only concerns with that water are the chlorine, which offer objectionable taste to some, and sometimes the hardness which makes washing chores more difficult.

My recommendation is a two fold process:

1) Carbon filtration and softening for most of your house
2) Carbon filtration only for your drinking water

In my municipality, I use a filter by a company called Kinetico.  The reason I use these filters is that they have a twin tank design for redundancy, meaning even if the unit is in a backwash mode you still get water.  They also do not require any electricity at all, and operate on water pressure. This saves a lot of hassle, wasted electricity and the potential for issues if you have power surges or black outs.

Kinetico makes a softener/carbon filter product that operates in this principle, so you will get soft, dechlorinated water for showering, washing, and laundry.  Check it out here:

http://www.kinetico.com/KineticoSystems/WaterSofteners.aspx

Scroll down to view the municipal water softeners.  I wholly recommend Kinetico products to be of top quality and reliability.  You may pay a little more than the Culligan systems but I think you will be pleased.

The reason I do not recommend softened water for drinking is because softened water adds a lot of sodium. The harder your water is, the more sodium it will add. This is especially a problem for those with heart problems or sodium restricted diets; but most health professionals agree too much sodium from water and/or food isn’t a good thing for your health.

When you get the softener installed, make sure your plumber plumbs a line from before the softener to the kitchen sink, where you will take your drinking and cooking water.

From there, my recommendation is to use a carbon filter.  Carbon removes chlorine, chloramines, and even some organics that may be present that might hamper taste.

You can get carbon filters in many forms.  Under the sink units with it’s own tap, under the sink that ties into the existing tap, units that attach right to your tap, and jugs with a built in carbon filter.

To see examples of this technology, I put together a simple Amazon web page.  Any of these carbon filters will do you just fine to improve the taste of your water:

http://www.truthofwater.com/store.html

One of the filters even comes with removable flavor cartridges.

The advantages of carbon systems such as this are that it works off direct pressure, so there is no “gallon limit”.  The filter cartridges are very inexpensive to replace compared to R.O. as well.

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Water Filter Information

Myron from CT writes:

We have municipal water. We use a lot of water (drinking, bathing etc.) I’m worried about chlorine, fluoride, metals, vocs and socs.

I’m looking for sink water filters for drinking and shower filters.
My head is spinning from all the products and information on the internet.

Hi Myron, thanks for writing in.

There is indeed a lot of information on the internet for water filtration and treatment systems.  There’s a lot of good stuff out there, and there is a lot of crap.  It is hard to know what to get at times.

Firstly, I’d like to belay your fears of all these nasties in your municipally treated water. Because there are so many people out to make a buck from selling you things you probably don’t need, there is a lot of money going into advertising creating negative propaganda against municipally treated water.

These days, water plants employ things like optimized coagulation, and sedimentation techniques, advanced oxidation, and activated carbon filter beds, and an aggressive distribution sampling protocol to ensure the safety of your water supply.  Most of the things you mentioned above are either just not there or are there well below the governments maximum acceptable concentrations.

However, if you want to err on the side of caution and make sure, and you have the money to spend, there are several things you can do.

Firstly, chlorine, VOC’s, and SOC’s.  These are things that can be removed with an activated carbon filter.  Activated carbon will also remove lead, which is effective if you have older plumbing in your home.  It’s important that you ensure the filter remains fresh and change it out at manufacturer recommended intervals, because activated carbon can propagate bacterial regrowth.

There are a few ways you can utilized this technology. I’ve provided links to appropriate products on Amazon.com to help you along.  Any of the products I recommend here will do the job.

There is a countertop pitcher method, where you add your water to the device, it filters it and you serve the water from it. You can view a good examples here and here.

You can also attach a carbon filter right to your kitchen tap, as you can see here and here.

Fluoride is a highly debated chemical. Some experts claim it’s imperative, while others claim it’s harmful. I tend to think that at the minute levels found in most supplies, it’s not any particular concern. You probably get all the fluoride you need if you purchase a quality toothpaste.

If it is a concern to you, there’s only one way to remove it, and that’s to use reverse osmosis filtration. R.O. also removes everything else.  It leaves you with nothing in the water but water.  If you decide to go this route, there has been some debate on whether the absence of minerals can be harmful. I tend to think that as long as you have a good diet and take a multivitamin, it’s not a big deal.

To check out a reverse osmosis unit, (which includes sediment and carbon prefilters), you can click here

Shower filters are also available in carbon filtration to remove chlorine.  There’s been some talk if the chlorine fumes are harmful.  There is so little chlorine in tap water (it just smells like a lot!) that I doubt it very much. However, it can’t hurt to take it out and it can make showering a more pleasant experience.

This shower filter will remove chlorine, and I think it’s pretty attractive too.

What you buy, what it removes and how much you spend is all up to you, but any of the above products should meet your needs.

I hope I’ve been of help. Please let me know if you need any clarifications.

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