On Apr 13, 8:22 am, Michael wrote:
On Apr 13, 6:38 am, "dadiOH" wrote:



Michael wrote:
I am considering getting my water tested again to identify what might
be causing the high TDS. I am suspecting Chloride which the original
test indicated and which I believe the inspector was mistaken to
attribute to thesofteneras thesoftenerexchanges Ca and Na but this
should add chloride to the water.

No, it adds sodium

CaCO3 + NaCl yields NaCO3 + CaCl (which is what is flushed out doing
regeneration, never enters your water)

--

dadiOH
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Sorry, I typoed and missed the word "not".

I am suspecting Chloride which the original
test indicated and which I believe the inspector was mistaken to
attribute to thesofteneras thesoftenerexchanges Ca and Na but this
should --- NOT --- add chloride to the water.

That was actually my point, thesoftenerwill add sodium to the water
when it exchanges with the calcium, but this should NOT add chloride
to my water. My inspector had told me my chloride results were high
because of thesoftener... thank you for confirming my understanding
to the contrary of what he told me.

-Michael

The softener may not be working right and adding sodium and chloride
to your water. Substitute potassium for sodium if you are using salt
substitute instead of softener salt (sodium chloride).

Yes road salting can cause high sodium, chlorides and TDS and all
three are corrosive to metals. So get tests for pH (yours is a bit
low), total hardness, TDS, chlorides, sodium, sulfates, iron, nitrate
and Coliform bacteria.

Your nitrate is somewhat high and that can be a health concern,
especially for a fetus and infants. Nitrate fluctuates seasonally with
precipitation levels and snow melt.

The Langelier Saturation Index (LSI) is not a good corrosivity test,
there are others that are much better but IMO none will benefit you
much in identifying what might be causing corrosion and we know that
high TDS, chloride and sodium will cause it.

Gary Slusser
Quality Water Associates