I recently DIY-installed this water softener in my home (see picture,) but I don't particularly like what I had to do to get it installed.

The 18" corrugated stainless bendy lines each have 1 inch FIP fittings at the softener ends, and 3/4 inch FIP fittings at the plumbing loop ends. I don't particularly like how much I had to bend them to get them where they needed to go; they are almost kinked. I also don't like how far from the wall the water softener has to sit in order to keep them from getting kinked.

I think perhaps if I ordered 15" replacement lines I wouldn't have to hairpin-bend them like this quite so badly, but I also think that would put stress on the plastic (CPVC) nipples on the water softener.

UPDATE: Another reason I don't like this, is that I intended to also install a particulate filter on the supply side. But if I had, then I'd have needed to twist that corrugated line up like a crazy straw.

I am wondering if I could possibly redo this with some other combination of fittings and pex (or any other recommendations that make sense.)

Also: I didn't use thread dope on the CPVC fittings. I didn't know if I should or not. At the least, it is not leaking.

My DIY softener installation


2 Answers 2


Longer flex lines, not shorter.

I have a very similar situation. I used braided lines rather than corrugated, but the bends are similar. In my case they protrude at a higher point. By using longer lines you can make more gradual bends at all points. Think spiral or loop rather than S-bend.

Alternatively, add onto the supply protrusions. Sweat new elbows or use Sharkbite fittings to raise the outputs and orient them so your flex lines can make a simple 90° or U-bends. S-bends are always more challenging.

enter image description here

  • I don't know why my searching didn't pull up braided lines. Possibly my search terms were biased by my prior experience of only seeing corrugated lines used. I'll see if I can find some with the needed size fittings on the ends (and also maybe add some elbows to the supply & return pipes.) Jul 14, 2022 at 15:03
  • 2
    Never have I seen a more nicely decorated utility room! :) +1 on the longer lines. My softener lines make a complete circle with braided lines and I haven't had a lick of trouble with them in the 10+ years this softener has been installed.
    – FreeMan
    Jul 14, 2022 at 15:33

It doesn't look like you can add two 90 degree reducing elbows, 1" to 3/4" and short nipples, to the unit but you could do it to the supply side, 3/4" elbow and short nipple pointing up and drop down with the "bendy" lines. Just a thought.

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service and acknowledge you have read our privacy policy.

Not the answer you're looking for? Browse other questions tagged or ask your own question.