# Main Flushing

> Water main flushing calculator for AWWA standards. (iPhone/iPad app by Jeff Evans.)

- Source: https://appshunter.io/ios/app/main-flushing/id1251536814 (this page in markdown: same URL + `.md`)
- Developer: [Jeff Evans](https://appshunter.io/developer/1155207587)
- Category: Utilities
- Price: Free
- Rating: 5.00/5 from 1 App Store ratings · 1 written reviews indexed
- Age rating: 4+
- Requires: iOS 10.3 · 15 MB
- Languages: English
- Released: 2017-06-30
- Data updated: 2026-06-10
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/main-flushing/id1251536814/reviews.md

## What is Main Flushing?

Calculate flushing time, velocity, and gallons per minute for water mains. Achieve AWWA flushing standards of three feet per second by adjusting all seven inputs. The inputs include: Hydrant Diameter, hydrant length, hydrant pressure, main diameter, main length, blow off diameter and blow off length. H.W coefficient is set to 140.

## Key features

- Calculate flushing time
- Calculate velocity
- Calculate gallons per minute
- Adjust seven input parameters
- Achieve AWWA flushing standards

## Recent user reviews (1 of 1)

All indexed reviews: https://appshunter.io/ios/app/main-flushing/id1251536814/reviews.md

### 5/5 — Great

*2017-09-27, version 2.1*

Keep up the good work!

## Frequently asked questions about Main Flushing

### What is Main Flushing used for?

Main Flushing is a utility app designed to help users calculate flushing time, velocity, and gallons per minute for water mains. It assists in meeting AWWA flushing standards by allowing adjustments to key input parameters.

### What inputs can be adjusted in Main Flushing?

Main Flushing allows users to adjust seven inputs: Hydrant Diameter, hydrant length, hydrant pressure, main diameter, main length, blow off diameter, and blow off length. The H.W coefficient is fixed at 140.

### What standards does Main Flushing help achieve?

The app is designed to help users achieve AWWA flushing standards, specifically a velocity of three feet per second, by providing the necessary calculations based on user inputs.

### What devices is Main Flushing compatible with?

Main Flushing is compatible with iPhones, iPads, and iPods, making it accessible on various Apple mobile devices.

### How often is Main Flushing updated?

The latest version of Main Flushing is 2.1, which was last updated on September 1, 2017. The app was initially released on June 30, 2017.

### What is the age rating for Main Flushing?

Main Flushing has an age rating of 4+, indicating it is suitable for users aged four and older.

### Is Main Flushing available for free?

Yes, Main Flushing is available for free, meaning there is no cost to download or use the application.

### What is the user sentiment for Main Flushing?

Based on the available data, Main Flushing has a perfect rating of 5.0 stars from 1 rating, suggesting a highly positive user experience.

## Version history (last 1 release)

### 2.1 — 2017-09-01

This app has been updated by Apple to display the Apple Watch app icon.

Works with older iOS devices.

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## More apps by Jeff Evans

- [LBW Construction](https://appshunter.io/ios/app/lbw-construction/id1170727802)
- [Flow Conversions](https://appshunter.io/ios/app/flow-conversions/id1276206364)
- [Hydrostatic Test](https://appshunter.io/ios/app/hydrostatic-test/id1318917300)
- [LBWD Development](https://appshunter.io/ios/app/lbwd-development/id1373310729)
- [LBWD- L2G Tour and Festival](https://appshunter.io/ios/app/lbwd-l2g-tour-and-festival/id1463962866)

All apps by Jeff Evans: https://appshunter.io/developer/1155207587

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*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.*