Steve B wrote:
I have one of those softeners. There is an upright canister about five feet
tall. Then there is a black container with a lid that holds about four bags
of coarse salt.

My doctor said to cut down on all salt. I was wondering just how much salt
is left in that after it has done its thing. We also have a reverse osmosis
unit, but I can't see how that could remove dissolved salt, and if it does,
I think I would have to change the filter canisters weekly.

I know that I can take a pool water sample to my pool store, or I think to
Home Depot, and they will run an analysis on it.

Is there anywhere I can take this water sample, or buy test strips, or does
someone here know? Or know a site with the answer?

First of all, don't take medical advice from strangers in a newsgroups.
You don't know if you're talking to MDs or 13 year old kids.

2nd, a quick google search found this from the Mayo Clinic:

http://www.mayoclinic.com/health/sodium/AN00317