Have you run a set of tests on your unfiltered water yet? If not please do so now. Your plaster needs some CH but some areas of TX has very hard water so..............it might be best to use your soften water.
Kim
No, I don't have testing equipment yet. ..... I remember when they were testing my water when we had the softener installed, the water was hard but not super hard like some areas. I just don't remember the numbers, etc.