DWV Pro: Drain Waste Vent
Fixture units to pipe size
Only for iPhone
Free · In‑App Purchases · Designed for iPhone. Not verified for macOS.
iPhone
Size drains, stacks and vents and get slope and fall from the IPC tables, every table cited. Works offline in the crawlspace. Pay once, no subscription, no ads.
DWV Pro is the pay-once, no-login DWV sizing calculator built for working plumbers and inspectors.
Build your fixture load with a tap, and DWV Pro gives you the answers you need on the job:
- Drainage Fixture Units for every fixture (IPC Table 709.1)
- Minimum pipe size for building drains and sewers, horizontal branches, and stacks (Tables 710.1)
- Required slope and total fall for any run (Table 704.1)
- Minimum vent size by stack size, load, and developed length (Table 916.1)
It even holds a building drain serving a water closet to the 3-inch code minimum automatically.
WHY DWV PRO
- Pay once - no subscription, no login, no ads.
- 100% offline - works in the crawlspace with no signal.
- Every table cited and cross-checked against the published IPC.
DWV Pro is a professional estimating and reference tool. It is not a substitute for a licensed engineer or your authority having jurisdiction - always verify against your locally adopted code.
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
The one-time purchase is now called Vent & Slope, named for what it actually unlocks: vent sizing, slope, fall and invert elevations, saved projects, and the PDF sizing summary. Same purchase, same price — if you already own it, nothing changes.
The developer, Donald Proctor, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Donald Proctor
- Size
- 1.1 MB
- Category
- Productivity
- Compatibility
Requires iOS 17.0 or later.
- iPhone
Requires iOS 17.0 or later. - Mac
Requires macOS 14.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
- English
- Age Rating
4+
- 4+
- In-App Purchases
Yes
- Vent & Slope $4.99
- Copyright
- © 2026 Ripple
