Kold Sterile...........

[joeyz]

Well after everyone's bad experiences with these people, I might have to think twice. The only thing is that we have excellent water here in NY. In fact, NY's water is also known as the "champagne of water." Ken at Kold Sterile told me that my water supply contains extremely low levels of phosphates and silicates due to the quality of water we have to start off with. I am totally ignorant when it comes to all of this but Ken told me that other areas with lower qualities of water add phosphates to precipitate the heavy metals in the water supply. According to him, we do not have a heavy metal problem, thus very low phosphates.

If this is true then maybe the Kold Sterile product IS for me. If not I guess it will be RO/DI.

Is any of this true or make sense? Thanks

 

[Agu]

Joeyz,

Makes complete sense, the performance of the Kold-sterile is a function of your source water. That's why I said ask poly-bio if your water is good enough to use a kold sterile. Before buying I checked all the posts regarding kold sterile (Doug, where were you?), all posters were very happy with their units, but none were from the midwest as I now recall. Even though I've been stiffed, the concept is still viable in the right situation.

Disclaimer, I still have a kold-steril unit for sale. $175, needs all new media.

Agu

btw, check Waterkeepers comment to me regarding precipitating as opposed to sequestering.

 

[joeyz]

Joeyz, Makes complete sense, the performance of the Kold-sterile is a function of your source water. That's why I said ask poly-bio if your water is good enough to use a kold sterile.

Agu - if you were selling Kold Sterile (forget for a minute that you are an honest guy), if I called you up and said "Is my water source good enough to use with a kold sterile unit" what would you answer me? Would you say no, go buy an ro/di? I think not! So of course he was going to say yes.

The only thing on my side is that I live in ny and we have excellent water. The other thing is that I live a half hour from Ken and he was very familiar with my water quality which he said was good.

I need to think this over a little more.
Again, I will definitely let you know about your unit.

 

[Agu]

Joeyz,

I will not screw over a RC friend (unlike some manufacturers I know about)!!! The thing to do is find out if other people with the same source water are having sucess using the ks.

Agu

KS for sale

 

[Doug]

Hi Agu,

Doug,

You're having my symptoms exactly. If you'd like an explanation of what's happening I'll forward the email that explains the problem I'm having. Notice you're from the midwest also, seems the makeup of our water makes the kold steril unusable.

Agu

Please send me the email if you have the chance. The water out here is really bad at least from what I could tell when I was using the TWP and only getting 50g out of it.

Thanks very much.

Doug

 

[WaterKeeper]

One last comment.

Agu is correct that ground water in the Mid-west is very hard and in many areas is lime softened. Still some hardness remains and polyphosphate is often added. Polyphosphate is oligodynamic in its effect which basically means a little does a lot more than you would expect it to. The basic thing is it does is tie up calcium, magnesium and iron and retain them in solution. This reduces build-up in hot water heaters and reduces staining. Addition rates are 1 or 2 ppm.

East Coast waters are by the most part naturally soft. This is good but it also makes them corrosive. Here the normal orthophosphates are used as corrosion inhibitors. The most common is Zinc orthophosphate which produces a chemical coating in the pipe and helps protect it. This chemical is used in much higher concentration around 5-20 ppm.

Both types of phosphate are removed by RO/DI. Ninong states that RO may not be sufficient to remove phosphate to a low enough level. This is true if your water has phosphate levels of say 10 ppm. A good RO unit only gets 98% removal which still means you have 0.20 ppm left following treatment.

Silica is found naturally in many waters. It is also added as a corrosion inhibitor. For an RO unit this is one of the materials it is poorest at removing. Usually about 94-96% but less than 90% if you use a CA type membrane.

Finally, salt mixes are formulated near saturation with calcium. If cloudiness developes it is because dissolved calcium in the make-up water over saturates the salt mix and causes precipitation.

Think that covers all the bases.

Sincerely,

Ex-Culligan route driver

 

[JamesB]

Methinks you did more than just drive the truck!

Thanks for taking the time to provide the info.

Later, James

 

[Beenalongtime79]

Build your own advanced system for under 200 bucks!!!

Build your own advanced system for under 200 bucks!!!

If you guys really want a good system with 0 waste and incredible water output at about 2/3 of the price of RO/DI units or the Kold Steril system then just go to Pet Warehouse or Pet solutions on the net and buy five Tap Water Purifer units and then buy a 12 pack of the Poly discs (basically what is used in the first stage of the Kold-Steril setup). Then put all those units together and get like 250 gallons of water out of them (or until the resins have changed to their appropriate colors indicating that they have been used up) Then take one unit and remove all the resin and carbon from it and use it to place the poly-discs in (which fit perfectly into the canisters). Don't pack the discs too tightly. You can fill the rest of the space with either zeolite or high quality activated carbon. Then pretty much separate the carbon and resins into separate canisters and keep one mixed bed canister at the very end. So you're whole setup should kind of look like this. Carbon bed canister, then canister with Poly discs, Cation canister, Anion canister, and then you're mixed bed at the end for some really high quality water. After you've separated all the resins. It's really easy to recharge the resins. The poly discs really boost the life of the DI resins. If you want more information check out this site.... http://www.reefs.org/library/article/g_deutschmann_instruct.html

 

[high-mark]

Do you still have the Kold Ster-il unit forsale?
gswiech@gmail.com