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The digital break room for working plumbers. Swap diagnostic photos, debate fittings, and pull code references — even when you're under a slab at 2 AM.
Navien NHB error 038E — no hot water
PEX-A vs PEX-B expansion fittings — settle this
Corroded galvanized 2" main — replace or reline?
Journeyman exam — gas pipe sizing formula
Rheem PROG50-40N anode rod — threads stripped
DeltaVince_PDX
4,810 rep
142
Answers
9🔥
Day Streak

Textbook 1/2" copper sweat — no cold lap, full penetration
by MasterKyle_ATX · Journeyman
See What You're
Missing in Browser
The web forum gets you in the door. The app puts the whole supply house in your pocket — including the parts you need when there's no signal under a slab.
| Feature | Web OnlyFree | Free App$0 | MOST POPULARPro App$9/mo |
|---|---|---|---|
Forum Access Read + post threads | ✓ | ✓ | ✓ |
Photo-First Posting Attach diagnostic photos inline | Limited | ✓ | ✓ |
Offline Code Reference IPC, UPC, NFPA 54 — no signal needed | — | — | ✓ |
Push Alerts Instant reply notifications on your phone | — | ✓ | ✓ |
Saved Diagnostic Flowcharts Bookmark troubleshooting trees | — | 3 max | Unlimited |
Verified License Flair Display your journeyman or master license | — | — | ✓ |
Private Shop Channels Closed threads for your crew only | — | — | ✓ |
AI Error-Code Lookup Instant decode on 200+ manufacturer codes | — | 10/mo | Unlimited |
Upvote & Reputation Earn rank through quality answers | — | ✓ | ✓ |
Early Feature Access Beta tools before public release | — | — | ✓ |
Real Jobs.
Real Saves.
From a fixture swap question to a commercial boiler emergency — the community already solves problems on real jobsites every day.

“Studying for my journeyman exam on lunch breaks. Someone already posted every gas pipe sizing problem from the last three exams with full worked solutions. Passed first attempt.”

“Tankless error code at 4 PM Friday, customer waiting. Pulled up Flux, found a thread with the exact Noritz E9 fix — condensate trap clogged. Ten minutes, job done. Saved my weekend.”

“Commercial boiler on a school job, 6 AM Monday, principal standing there. Weil-McLain throwing a 4-flash lockout nobody on my crew recognized. Posted on Flux, had a retired union man with 30 years on Weil-McLain respond in four minutes. He sketched the fix on the back of an invoice — I wish I could say that literally, but he sent a photo of actual handwriting. We had heat by 7:15. I would have lost that contract.”
Take the Shop
With You
Drop your number and we'll text you a direct download link. One field, no friction — you'll have Flux installed before the next job.
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