Ro/di water... Use hot or cold water....... - Page 2

chicago_animal · 04/17/2011, 09:06 PM

lol. well look at the first poster to start this thread up. He was new.

the reefer · 04/17/2011, 09:09 PM

so is there a problem with just cold water? ive been running it with just cold water or should i just let it sum warm water while im making it ?

Blackhawk007 · 04/17/2011, 09:15 PM

Quote:

Originally Posted by Jeff

Look at the start date of this thread and the OP's status

Just trying to keep it going.

Baba Booey · 04/17/2011, 09:22 PM

Quote:

Originally Posted by Jeff

Look at the start date of this thread and the OP's status

I don't get it?

Blackhawk007 · 04/17/2011, 09:38 PM

Quote:

Originally Posted by Baba Booey

I don't get it?

I made the comment about the OP. But since it was years ago he probably has no interest in my comment.

unbelievable · 04/17/2011, 10:51 PM

Quote:

Originally Posted by Baba Booey

I don't get it?

+1 who cares about when the thread was posted its obviously still relevant to the hobby especially since someone brought it back from the dead. What does the persons status have to do with the question.......

Jeff · 04/18/2011, 06:38 AM

Of course the post is relevant. My point is that addressing the OP is not needed since he has been gone so long. The rest of us can still use the info here. I actually thought it was better to use cold water. I have my RO/DI connected straight to my cold water line.

chicago_animal · 04/18/2011, 07:50 AM

I just used my RO/DI unit for the first time this weekend and the directions say to never use hot water, only cold. I forgot the reason it said but I know it did say not to use hot water.

unbelievable · 04/18/2011, 09:18 AM

Quote:

Originally Posted by Jeff

Of course the post is relevant. My point is that addressing the OP is not needed since he has been gone so long. The rest of us can still use the info here. I actually thought it was better to use cold water. I have my RO/DI connected straight to my cold water line.

Gotcha!

skunkmere · 04/18/2011, 09:56 AM

hot water will damage your ro membrance. idea temp is 77F. 90F will damage the membrane. I was looking into a blending valve but i lost interest since the only thing cold water does is decrease your production. Cold water makes cleaner water since the pores in the membrance are smaller, and if its warmer the pores get bigger so you make more water but less clean. 77F is the optimal temp.

Blackhawk007 · 04/18/2011, 10:28 AM

Quote:

Originally Posted by skunkmere

hot water will damage your ro membrance. idea temp is 77F. 90F will damage the membrane. I was looking into a blending valve but i lost interest since the only thing cold water does is decrease your production. Cold water makes cleaner water since the pores in the membrance are smaller, and if its warmer the pores get bigger so you make more water but less clean. 77F is the optimal temp.

Very well said, much better than my post. I completely agree.

Buckeye Hydro · 04/18/2011, 06:34 PM

Quote:

Originally Posted by skunkmere

idea temp is 77F.

There is really nothing "ideal" or "optimum" about 77F. If happens to be the temperature at which most residential membranes are run when their performance is tested by the manufacturer. That's all. There are trade-offs if you go warmer or colder.

Quote:

90F will damage the membrane.

Hmm. anything over 113F will void the warranty on a Filmtec membrane. You won't see any damage at 90F.

Russ

unbelievable · 04/18/2011, 07:38 PM

Do they make an inline temp gauge that would attach via john guest fitting?

04/18/2011, 06:38 AM	#32
Jeff Registered Member Join Date: Jul 2005 Location: Chicago Posts: 11,907	Of course the post is relevant. My point is that addressing the OP is not needed since he has been gone so long. The rest of us can still use the info here. I actually thought it was better to use cold water. I have my RO/DI connected straight to my cold water line. __________________ Always remember.... any time you reef, you also reef with every reefer that reefer has reefed with. Mitch 2/18/10 IWNFT343F Current Tank Info: Innovative Marine 20

04/17/2011, 09:06 PM	#26
chicago_animal Registered Member Join Date: Nov 2006 Location: Chicagoland Posts: 460	lol. well look at the first poster to start this thread up. He was new.

04/17/2011, 09:09 PM	#27
the reefer Registered Member Join Date: Jan 2011 Location: chicago/pilsen Posts: 319	so is there a problem with just cold water? ive been running it with just cold water or should i just let it sum warm water while im making it ?

04/18/2011, 07:50 AM	#33
chicago_animal Registered Member Join Date: Nov 2006 Location: Chicagoland Posts: 460	I just used my RO/DI unit for the first time this weekend and the directions say to never use hot water, only cold. I forgot the reason it said but I know it did say not to use hot water.

04/18/2011, 09:56 AM	#35
skunkmere Registered Member Join Date: Aug 2004 Location: chicago Posts: 6,434	hot water will damage your ro membrance. idea temp is 77F. 90F will damage the membrane. I was looking into a blending valve but i lost interest since the only thing cold water does is decrease your production. Cold water makes cleaner water since the pores in the membrance are smaller, and if its warmer the pores get bigger so you make more water but less clean. 77F is the optimal temp.

04/18/2011, 07:38 PM	#38
unbelievable Moved On Join Date: Oct 2010 Posts: 534	Do they make an inline temp gauge that would attach via john guest fitting?