Pre-Installation Checklist - Hellenbrand 1 Owner's Manual

PRE-INSTALLATION CHECK LIST
Note:
Well and/or pump problems affecting the operation of the
softener are repairs that are not covered under warranty. To
prevent these unnecessary, and expensive repairs that are not
covered under warranty, we recommend the installation of an
in-line filter system ahead of softener installations.
Make certain the current supply is uninterrupted and
cannot be turned off with another switch. All electrical connections
must be connected per local codes. Surge protection is
recommended with all electric controls.