I have got 2 different types of membranes in my RO unit.The Purefreedom membranes product water is 20ppm whilst the RO Man's membrane produces water with a TDS of 6. The input water is 310.Get what you pay for. I guess.RO Mans are meant to be TFCs whereas PureFreedom dont say on their site, not that I can see.Matt
I have experienced the same thing the last lot of membranes from ro-man produced 10ppm before di the ones i have just fitted from pure freedom only last week produce it at 20ppm before di.paul
Ian, are you saying I could expect in time for it to drop on the pureFreedom one?
6 hours
Quote from: Matt @ Oakley Windows on January 20, 2009, 09:13:42 pm6 hours lol, how long did you flush it for ?>>
Membrane rejection will be affected by the incoming water tempreture.The TDS reading will also vary depending of what contaminants the Total Disolved Solids is made up of, you cannot compaire one quality membrane against another in a different area because of the many variables involved.
If you have three membranes and check the tds of each one their will always be some variation.