Your RO or RO/DI unit...did you know?

[Alberta-newb]

Learn something new everday! Thanks for the info, I just ordered in a RO/DI so now I'll make plans to install a valve ahead of my reserve so I can flush away that first litre or two. Since I'm installing my unit right beside my tank, I was thinking of geting an extra 25' of tubing, coiling it up and putting it in the sump to pre-warm it a little (my supply is quite cold) Think this is a good idea?

Francis