Reverse Osmosis notes
Posted 22 March 2009 - 10:05 AM
-old Irish saying
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Posted 22 March 2009 - 10:18 AM
just to clarify a little bit, the little balls are referred to as resin beads. In a water softener the softening process is called ion exchange. the beads are charged with salt and as mineral water passes through the beads they release salt and absorb the dissolved minerals. One reason it would be bad to hook softened water up to an ice maker is because of the salty taste. usually softened water isn't hooked up to the cold water faucet in the kitchen so we don't have to drink the salty water. Reverse osmosis systems are able to remove the minerals without adding salt. The biggest problem i run into with RO systems hooked up to ice makers is they don't provide enough water pressure. I don't have much info on how reverse osmosis works, hopefully someone will be able to post on the subject.
Posted 22 March 2009 - 12:19 PM
Posted 22 March 2009 - 12:24 PM
Posted 23 March 2009 - 12:02 PM
Some water filters can serve to allow the overgrowth of bacteria, and thus have the potential to adversely affect health. There are several ways to minimize this risk. One is to maintain a schedule of cleaning/replacing the filter media. Another is to install a sterilizing unit, for example a UV sterilization chamber, after the filter. Chemical sterilization is possible, but I prefer UV sterilization.
Posted 24 March 2009 - 06:36 AM
Anyway, I suppose it works properly, since we don't have any salty taste after the softener regenerates. And the ice machine works properly (except for the GE moisture problem and the rusty ice chute door solenoid).
Posted 09 July 2009 - 05:06 PM
Posted 17 July 2009 - 11:36 AM
(osmosis: the diffusion of particles through a semi-permeable membrane)
What remains after passing through the membrane is almost perfectly clear water (very high 90%ile, only distilled water is cleaner)- it is then sent through another filter to "polish" the water, which is often pretty much the same as the first filter(except for the life obviously)- and the 2 can sometimes be interchanged in a pinch.
R/O water is VERY good drinking indeed! - the TDS (total dissolved solids) is usually 10-50 from what I have seen.
It can be quite costly to maintain the units in the long run, as filter replacement is key to getting any life out of the membrane; which is roughly 1/3 of the price of the unit. Where I live, there is alot of chlorine in the tapwater and that "kicks up a fuss" inside those membranes and the people who still insist on having them usually just pitch the unit and replace it when something goes awry.
As good as the water is, my opinion is that they are quite wastefull in many ways (you consume 3 times the water you render from the process) and they just become boatanchors in the landfill.
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