# Code Snap Main Line — Water Line Sizing For Plumbers

> Plumbing water line sizing calculator based on Uniform Plumbing Code. (iPhone/iPad app by Magnitude LLC.)

- Source: https://appshunter.io/ios/app/code-snap-main-line/id1074179908 (this page in markdown: same URL + `.md`)
- Developer: [Magnitude LLC](https://appshunter.io/developer/703754875)
- Category: Utilities, Productivity
- Price: $4.99
- Rating: 4.50/5 from 58 App Store ratings · 2 written reviews indexed
- Age rating: 4+
- Requires: iOS 13.0 · 1 MB
- Languages: English
- Released: 2016-01-20
- Data updated: 2026-06-10
- Monetization: paid
- User reviews in markdown: https://appshunter.io/ios/app/code-snap-main-line/id1074179908/reviews.md

## What is Code Snap Main Line?

Code Snap Main Line is the fastest way to size a residential potable water system using The Uniform Plumbing Code without hunting through a table or using a note pad.

How It Works:
After the required measurements have been taken simply input the data, select the fixtures being served and Code Snap Main Line will instantly calculate the main or branch line size 1/2" through 1-1/2".  

Code Snap does not replace your U.P.C. code book,  every plumber must have a code book to reference along side Code Snap Main Line in order to understand and obey the plumbing "law" in your state. 

Code Snap Main Line is based on The 2012 Uniform Plumbing Code Chapter 610.8 and the research findings Of IAPMO.  All idea's, procedure's, process, system's, method's of operation, concept's, principle's, and discovery's are referenced directly from The 2012 Uniform Plumbing Code Chapter 610.8.  Code Snap Main Line was made for experienced Plumbers, by experienced plumbers so that sizing on the job can be quickly completed. Duplicate fixture unit vales have been removed due to uncommon meter sizes, the next greater value will be used to simplify the sizing process and insure undersizing does not occur.

Code Snap is an on going independent private effort that is not affiliated with iapmo in any way.  your input helps the development of code snap so we can make positive changes towards the future.

## Key features

- Instant water line size calculation
- Uses Uniform Plumbing Code
- Supports 1/2" through 1-1/2" lines
- Based on 2012 UPC Chapter 610.8
- Designed for experienced plumbers

## Recent user reviews (2 of 2)

All indexed reviews: https://appshunter.io/ios/app/code-snap-main-line/id1074179908/reviews.md

### 5/5 — A Big Help

*2022-10-23*

Best quick reference for the basic calculations we as plumbers use!!! Worth it!!!!

### 2/5 — Waste of money

*2021-09-12*

I could of just got the book. I have to purchase the book in this app. I bought the 3 pack and there is a few things it goes over but I got the same information from a free app.One app did not have nothing just refers me to a bogus website that’s down.You have to purchase the actual plumbing code book if you really need some help.For 13$ that was a rip off. Needs way more information and a way to see diagrams. I hope it gets updated.

## Frequently asked questions about Code Snap Main Line

### What is Code Snap Main Line?

Code Snap Main Line is a utility app designed to help plumbers quickly calculate the correct size for residential potable water systems using the Uniform Plumbing Code. It simplifies the process by allowing users to input measurements and fixture data.

### How does Code Snap Main Line work?

After taking the necessary measurements, you input the data and select the fixtures being served. The app then instantly calculates the main or branch line size required, ranging from 1/2" to 1-1/2".

### Does Code Snap Main Line replace the Uniform Plumbing Code book?

No, Code Snap Main Line does not replace your UPC code book. Plumbers must still have and reference their code book to understand and comply with state plumbing laws.

### What version of the Uniform Plumbing Code is Code Snap Main Line based on?

Code Snap Main Line is based on The 2012 Uniform Plumbing Code Chapter 610.8 and research findings from IAPMO. All procedures and concepts are referenced directly from this section.

### Is Code Snap Main Line suitable for beginners?

The app was created by experienced plumbers for experienced plumbers to speed up on-the-job sizing. While it simplifies calculations, a strong understanding of plumbing codes is still necessary.

### What devices does Code Snap Main Line support?

Code Snap Main Line is available for iPhone, iPad, and iPod devices. It is designed for Apple's mobile operating system.

### How often is Code Snap Main Line updated?

The latest version is 1.4, last updated on June 26, 2023. Updates are released periodically to improve functionality and ensure code compliance.

### What is the price of Code Snap Main Line?

Code Snap Main Line is a paid application priced at $4.99. There are no in-app purchases or subscription fees associated with its use.

## Version history (last 5 releases)

### 1.4 — 2023-06-26

iOS Compatibility Update

### 1.3 — 2020-04-04

Dark Mode Support

### 1.2 — 2019-01-23

Minor bug fixes.

### 1.1 — 2019-01-19

We've cleaned & cleared things up.

### 1.0 — 2016-01-20

This update is signed with Apple’s latest signing certificate. No new features are included.

## Apps similar to Code Snap Main Line

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [Photo Measures Pro](https://appshunter.io/ios/app/photo-measures-pro/id1296721678) | 4.1 (86) | $2.99 | Utilities |
| [Scales HD](https://appshunter.io/ios/app/scales-hd/id418843481) | 5.0 (3) | $2.99 | Utilities |
| [Mako Assist](https://appshunter.io/ios/app/mako-assist/id1590326943) | 3.9 (8) | Free | Utilities |
| [SundayView](https://appshunter.io/ios/app/sundayview/id1551276528) | — | Free | Utilities |
| [Pipe Calc Elite](https://appshunter.io/ios/app/pipe-calc-elite/id595640000) | 4.8 (143) | $19.99 | Utilities |
| [Paper Calc Office](https://appshunter.io/ios/app/paper-calc-office/id328576488) | 4.5 (85) | $0.99 | Utilities |

## More apps by Magnitude LLC

- [Code Snap: UPC & IPC Pro](https://appshunter.io/ios/app/code-snap-upc-and-ipc-pro/id704968016)
- [Alert Position](https://appshunter.io/ios/app/alert-position/id733678534)
- [Code Snap Fitting TakeOff](https://appshunter.io/ios/app/code-snap-fitting-takeoff/id945168143)
- [Reality Augmented (VR)](https://appshunter.io/ios/app/reality-augmented-vr/id954501500)
- [Code Snap: AI Plumbing](https://appshunter.io/ios/app/code-snap-ai-plumbing/id6754468743)

All apps by Magnitude LLC: https://appshunter.io/developer/703754875

---

*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-06-10.*