The water in san antonio is so hard, you definitly need a water softener. We have seen readings of 30 to 150 parts per million in hardness. Thats off the charts man.
In fact, san antonio water softeners are so readily available, you really need to do your shopping.
As you can see, water is a critical resource in Texas, theres a shortage, so you need not waste it.
A good water softener will help!