Attach the bypass valve to the new unit. This little doodad lets you cut the water to the softener without shutting off the whole house. Trust me, you’ll thank me when you’re changing the resin in five years and your partner wants to shower. Connect the inlet hose to the IN port, and outlet to OUT. Yes, it’s that obvious—but I’ve seen a grown man hook it backward and flood a kitchen.
Now, thread the brine line from the softener to the salt tank. Use the little compression fitting that came in the box. If it feels loose, tighten it more. If it feels tight, tighten it more. You’re not being paranoid; you’re being a hero.
Drain Line Drama
Attach the drain hose to the softener’s drain port and route it to a floor drain or utility sink. Make sure it’s not kinked—a kinked hose is like a piggy bank that only takes sadness. If you don’t have a floor drain, you can run it outside, but your lawn will look like a salt lick for deer. That’s fine; deer are great judges of water quality.
Pro tip: use zip ties to secure the hose. They’re the duct tape of the plumbing world, except they’re plastic and make you feel like an electrician.
Step-by-Step Guide to Replacing Your Water Softener: Tips for a Smooth