This is true.I am not an expert on this stuff, but it might be wise to get it tested by the lfs or get another tester just to make sure.
I watched some YouTube and read some threads and I added a flush valve and flushed the membrane for an 30 mins and it got down to 1ppm. Then I let it sit and ran it again and it went back up to 4ppm. So I may have to flush the membrane a bit before each use and then still dump the first little bit of RODI water.
Im done thinking about it tonight. Hopefully I can make a few gallons tomorrow after work for my ATO.