Any of you that upgraded checked the TDS from the new membrane?
I added new membrane to system along with new filters and done all the flushing etc, yet found my TDS before DI was now higher than previous, disconnected individual pipework to test, and get 12 TDS reading from new membrane and the same as usual 4 TDS from original one, any reason the new membrane is giving a higher reading, I'd have assumed they would give the same:-\