In hot water

Had a brain fart and ran hot water through my RO/DI unit, about 12 gal. will it be OK ?

 

It should be, but AZDR should be here shortly.

I hear if you say his name 3 times, he appears out of nowhere...

 

TDS meter looks good

 

Do you know, how hot was the water?

 

Straight hot from hot water tank

 

ok, did a quick search and found a subject similar. AZDR speaks on the water temp. Looks like I was wrong on my initial thoughts.

http://www.3reef.com/threads/hot-ro-water.126858/

 

RO membranes can be damaged at anything above 113 degrees F.
Disconnect your DI and let the RO run for 15-20 minutes then test your tap water TDS and your RO only TDS and calculate the rejection rate. This should give you an indication of membrane condition for now. I would watch it though as the hot water could have only loosened the glue that holds the membrane together and it could fail at a later date.

I hope like heck you don't make the mistake of trying to blend hot and cold water to get to 77 degrees? This is counter productive since cold water actually treats better than hot or even warm water and will give you lower RO only TDS so your DI works better and lasts longer. 77 degrees is just a number the industry has come up with as a standard to compare one membrane to another, it is not the optimal temperature.

 

No like I said straight hot water who has time for that any way

 

Many people try blending or tempering hot and cold to get to 77 degrees and it is a bad idea.

Remember being in the shower and someone starts the washer or flushes the toilet? You get your tush scalded! A membrane gets the same thing if it is running and it doesn't take much or long to ruin it. RO membrane fabric is a much thinner plastic sheet than even things like Saran Wrap or food wraps and the glue used to hold the wound element together is not heat resistant either.

 

Good to know that my 60 well water is good for my RO membrane!!