Connect the "Out" port of the softener back into your household's internal plumbing.

Once the plumbing is secure, you need to prepare the unit for its first cycle.

Searching for the is a smart first step. Do not trust a random blog post or a photocopied, indecipherable scan. Here is your action plan:

Turn off your home's main stopcock. Open a cold tap (usually the kitchen sink) to drain any remaining water from the pipes before cutting into them. Install the Bypass Valve Set