Your membrane may not show signs of damage, but it may now degrade at an accelerated rate. You'll have to be wary of the water you get out of it in the future. I'd contact the manufacturer and get their take on this- they're the experts, not us.
Unless the water was very hot I would be surprised if there was any damage. The problem is that it is hard to tell. The main reason not to use hot water is because it sits around in the water heater or in copper pipes. I'd chuck the water just in case, but my guess is the membrane should be ok.
I'm with AoS on this one. You just don't use hot water for things - it's got too much stuff in it from the pipes. But unless your house is very new or your water is very soft, its probably not copper from the pipes leaching into the water, its all the other minerals built up on the pipes over the years.
I think the other problem is that it softens your membrane and allows it to stretch out, which will allow undesirable particles to pass through and not be filtered out. Don't know what permanent affect this will have on your membrane, but as with any plastic, it will stretch out more when it's heated, and should (not positive) return to it's normal state when it cools.
Okay, I know you aren't supposed to do it, but it was too early this morning. Apparently I turned on the wrong spicket and filled by reservoir half full of hot RO water.
Is the membrane FUBAR or can I still get some use out of it? I'm gonna check hardness when I get a chance, but I'm just wondering if anyone else has done this.
Thanks, Dan
<BLOCKQUOTE><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><HR>Originally posted by tangirl:
<STRONG>You just don't use hot water for things - it's got too much stuff in it from the pipes. </STRONG><HR></BLOCKQUOTE>
Why would hot water contain anything different than cold water?
Thanks, all. I pitched the water to be on the safe side. I made a new batch of RO this morning and noticed that the unit was producing product water a bit faster than usual. Still haven't done any testing yet, nor have I recieved a CB from Kent tech support.
I'll probably go ahead and order a new membrane.
Thanks again,
Dan
The hotter the water, the more that gets dissolved in it. It's like pouring sugar into ice tea versus hot tea. You really have to stir it to dissolve it in the cold, but the hot will dissolve it much quicker. Since most pipes are copper, you will absorb copper into the water more readily. This happens in cold water, too, but not as much. Also, water will leave deposits in your pipes, and these deposits will dissolve in hotter water and leach into your water. Another example would be if you had a tea kettle that you only put hot water into and then boiled, you would have a lot of precipitated sediment in the bottom of it versus if you only filled it with cold water all the time.