The use of "magnetism" is a misnomer in this case. The supposed process is more of ionic attraction, the negative plate drawing the positively charged metallic ion in solution and the positive element attracting the carbonate or other negatively charged ion. No "magnetic" or wave process is available that I know could somehow remove the dissolved minerals. Having said that, ion-exchange, a process that replaces the strongly charged ions with weakly charged ions is a better bet. -----Original Message----- From: pic microcontroller discussion list [mailto:PICLIST@MITVMA.MIT.EDU]On Behalf Of Chuck Harkness Sent: Tuesday, November 25, 2003 9:21 AM To: PICLIST@MITVMA.MIT.EDU Subject: Re: [EE:] Physical (Magnetic) Water Treatment I can relate an experience with magnetic water treatment. A few years ago I was at a county fair and a company was demonstrated a magnetic water treatment system in combination with a filter for impurities. They purported their machine to perform better than a regular water softener and separate filtration system. Their demonstration was drawing some tap water into a container and testing it by using an eye dropper to put some chemical in it that caused the disolved minerals and other impurities to precipitate out and also foam on the surface from other impurities. Then they would take some more tap water, run it through their machine and perform the their test again; voila, this time no precipitates and the foam didn't form. Since I lived close to the fairgrounds I asked if I could bring some water from home and have them test it. I went home, and put some _distilled_ water from a purchased jug into a bottle and took it back to them. They performed the same tests on my water. Same results as with their water. Lots of precipitate and foam on a untreated sample, none with a treated sample. Now I suppose the distilled water I purchased could have been bad, but I was more inclined to believe their machine and tests were bogus. Needless to say I didn't buy. I sent a letter relating my experience to the commission running the fair, but never heard anything. Nothing ever came of it and I saw the same company demonstrating at the fair the next year. Chuck ----- Original Message ----- From: To: Sent: Tuesday, November 25, 2003 11:07 AM Subject: [EE:] Physical (Magnetic) Water Treatment > Does anyone have experience with physical water treatment? > > There are many products around, promising to change the structure of > calcium carbonate in a way, that this does not deposit within tubes, water > heaters, ... > You can read a lot of people, telling that these products work well, and > others, telling that they don't work at all. > > I think the only thing that does not need any discussions is, that all > these products are build of components worth almost nothing, but cost a > lot. > I think an electromagnetic water treater, which costs between 1-2k$ could > be built for about $10, if you know what it really does. > > I've seen pictures of such devices, containing a microcontroller, some > transistors and 2 electromagnets. others only have some glue logic, which > directly drives 2 antenna like wires. > > As far as i understand, most of the electromagnetic products have 1 or > more electromagnets, which get either a constant ac frequency, or sweep a > frequency range. > > It would be of great help, if someone could publish the frequency and > power, that these treaters usually work with, and eventually, someone has > experience with self built products. > > thanx a lot! > > tino > > -- > http://www.piclist.com hint: The PICList is archived three different > ways. See http://www.piclist.com/#archives for details. > -- http://www.piclist.com hint: The PICList is archived three different ways. See http://www.piclist.com/#archives for details. -- http://www.piclist.com hint: The PICList is archived three different ways. See http://www.piclist.com/#archives for details.