Well drat. My plan seems to have been foiled.
Tested with the LM test kit today - everything seems fine, _except_ my Chloride (Cl-) is about 73 ppm. I called my local utility, and talked to a guy in the lab, and he said the current Cl is 72 ppm, and it ranges anywhere from 43-139 ppm.
La Marzocco recommends a maximum of 30 ppm. And they said the only practical way to reduce Chloride is with a RO system. Which the water utility guy affirmed as well.
The water calculator says "balanced but pitting corrosion possible in presence of chlorides" - and the LM guy told me scary stories about the difference between having to be descaled (which may be expensive service) and having to completely replace boilers and other components (which is much worse).
So now a few thoughts...first, I shouldn't have been so excited and ordered the filtration/softening system from Clive so soon. Now, it seems this is useless for my situation. Lesson learned, I guess.
It seems like my options are as follows:
1. Get a RO system, with remineralization, and plumb it all in. I called a local service place recommended by LM to ask them about it, but I'm not super confident. And it sounds complicated.
2. Use Poland Spring water. Sadly, this is unavailable in my area. But I found it at target.com, and I can order (say) 26 of the 101 oz bottles for about $25, plus $6 shipping. I have a hard time believing they will ship 160 pounds of water to me for $6, but it might be worth a shot - ha!
3. Get distilled water, and make 70/30 water as described here - 70/30 Water
. I would love to hear about any experience anyone has with this - any issues with doing this?
Please send me any recommendations...I'm in a bit of a pickle now, and I'm not sure what to do!