What's the best way to check your RO systems pH? Does anyone use the pH Tester that you can buy from Cole Parmer?

What range should be for ur ro loop? Do you need to do pH of the ro loop?

We use our phoenix meters. We don't check the RO loop regularly for pH. Except when disinfecting.

I check the ph level of the feed water pre carbon. I use the "PH Testr 10" from Oakton which I purchased from the Cole-Parmer catalog.

pH of pure water is very difficult to measure. There is no AAMI requirement for pH of the RO product water. The pH of the AAMI water will have a negligible affect on the pH of the dialysate after the bicarb and acid are added.

Is there a reason you want to measure the pH of the AAMI water?

I thought you were supposed to check it. Well that's great news. Now I can make room for all the added stuff to check on my daily log.
Thanks for the info.

How about chatting about water source PH values and how they can affect your equipment-- looks like CMS writing alot about the effects on chlorine, chloramines, calcium and etc. apond our good old softeners, carbon tanks and R.O.s
At least they give us a option to--- I myself is trying to get a few reps of major manufacturers to respond.

Most cities (most is a general term) have the pH of the water supplies under control but hiccups can occur. pH is always little p big H and denotes the potential of the Hydrogen ion. When the pH rises above neutral or 7 (some people have said that 7.2 is true neutral but who cares) the Hydroxyl ion comes into play. High pH into the 10 range greatly decreases the carbon's ability to adsorb or remove Chloramines. The TFC RO membrane doesn't like the Hydroxyl ion so it doesn't remove it very well. Sodium Hydroxide is the normal culprit in a dialysis system and causes loss of rejection and high conductivity. NaOH actually shows up as a false conductivity but it is there.
Anyway, tracking pH and other water supply characteristics through seasonal changes is not a bad idea in most areas. Checking pH on RO water is not necessary in normal circumstances.
Checking rain water is some times interesting.