"homerlex" wrote in message
...

Where do you get the water to test? My guess is that sitting overnight in
the piping or the tank, it is picking up something from them.

The water I test is from the kitchen sink. I just tested now (after a
day of the facet being used) and TDS is still over 900.

Should I even be concerned about the TDS in the softened water as long
as the RO is doing its job?

+++++++++++++++++++++++++++++++++++

With RO, I'd not be concerned. Without RO, I'd have the water tested for
purity and if it meets quality standards, not worry about it.