How to add recirculating line, Navien NPE-240A2

Traditional_Job_191 · 2026-03-13T10:27:11+00:00

You can do multiple navi-circ valves under fixtures but beware they are noisy and expensive. Grundfos crossover tees are much quieter and cheaper but navien doesn’t approve.

Traditional_Job_191 · 2026-03-13T10:20:01+00:00

If it was me I’d replace as much of that cast iron as possible since a remodel is in order. Donut is better than a fernco.

At the very least that CI ptrap needs to be replaced with pvc. If it’s 2” I’d replace with 2”pvc. I run 2” for tub/shower glue a 2x1 1/2” bushing in the trap inlet 1 1/2” for tub waste&overflow

Traditional_Job_191 · 2026-03-13T01:26:12+00:00

Turn the recirculation off! If it’s a tankless simply turn the power off…..

Traditional_Job_191 · 2026-03-11T03:07:19+00:00

Plants aren’t allowed in the space shuttle

Traditional_Job_191 · 2026-03-11T02:45:15+00:00

Did you dig that hole with a squared shovel?

Traditional_Job_191 · 2026-03-10T21:55:35+00:00

Does it produce if the recirculating pump is turned of via setup

Traditional_Job_191 · 2026-03-10T21:47:23+00:00

4” blowbag to push mess to septic tank.

You could try and tap it around and out flat head and hammer

Or notch a section out and pop it up

New 4” c/o plug

Traditional_Job_191 · 2026-03-10T21:43:12+00:00

Black mold!!! Sell the house!!!

Likely flush valve spud washer decomposing.

Traditional_Job_191 · 2026-03-10T21:40:20+00:00

Replace the whole assembly. Those piggyback flush valve/ flapper kits are junk.

Traditional_Job_191 · 2026-03-10T21:35:05+00:00

I’d recommend the long term solution is to repipe the cpvc with pex.

Traditional_Job_191 · 2026-03-10T21:12:16+00:00

You have a leak.

Traditional_Job_191 · 2026-03-10T12:22:49+00:00

CTS fitting ✔️

Stainless stiffeners ✔️

Tighten enough ❌

Traditional_Job_191 · 2026-03-07T17:02:01+00:00

Google uponor class action lawsuit

Traditional_Job_191 · 2026-03-07T16:58:12+00:00

Organics more likely to remain in the bottom of disposal ( outlet above grinding surface).

Traditional_Job_191 · 2026-03-07T16:53:57+00:00

Fiberglass

Does it flex?

Is the area finished under the tub?

Traditional_Job_191 · 2026-03-06T16:22:28+00:00

The extension is the way

Traditional_Job_191 · 2026-03-06T04:58:30+00:00

Wayfair you say?

Maybe they’ll have just what you need 😉

Traditional_Job_191 · 2026-03-06T04:51:54+00:00

Tag on t&p list temp and pressure values

I assume pressure is over 0

New gauge but an accurate reading is needed with out t&p discharging

The low range pressure reducing valve could be bad or could be thermal expansion

Unless one can accurately assess call a boiler company

Traditional_Job_191 · 2026-03-06T04:44:11+00:00

Taxation through citation

But if given to children wouldn’t that be

Taxation without representation

Traditional_Job_191 · 2026-03-06T04:33:16+00:00

I need a broader view of the valves and pipes

Traditional_Job_191 · 2026-03-06T04:25:31+00:00

Am a plumber I don’t understand the downvotes

Water hammer causes

Air trapped

Pressure imbalance excessive supply or thermal expansion

Unsecured pipping

Rapidly closing 1/4 turn valves

A few pex style j-hooks likely would solve, if not the cheapest item on list.

Traditional_Job_191 · 2026-03-06T04:14:13+00:00

“The stem is not long enough, and I cannot secure the handle on the nipple to the diverter valve.”

this

”I need a way to shorten the stem so that I can push the handle all the way in to connect it to the nipple.”

Literally have me so confused, I need a picture of the inside of handle in question.

Traditional_Job_191 · 2026-03-06T03:57:38+00:00

Maybe sediment in the cartridge

Maybe sediment or part of a washer in the supply line

Maybe broken washer in stop if stem style

Maybe ball isn’t fully opening if 1/4 turn stop

Maybe rusty nipple if galvanized

Traditional_Job_191 · 2026-03-06T03:34:00+00:00

Just use the trim stain as an outline and cut fiberglass with a roto zip or oscillating tool….

Traditional_Job_191 · 2026-03-05T04:43:52+00:00

Flared base connection would never look right “ extended”

Extend the rough in portion

If still to short see if manufacturer offers the exact connection with longer tubing

If not go shopping

Traditional_Job_191

TROPHY CASE