Unsure how to properly plumb a new double vanity into existing drain line while meeting code.

No easy-to-use code-compliant plumbing design tool or interactive guide for DIYers to plan drain configurations.

Severity

2Mild

Willingness to Pay

implied

Added

May 1, 2026

Workarounds Described

posts on Reddit asking for plumbing advice with photos

Implied Software Gaps

Interactive plumbing design tool that checks code compliance for DIY fixture additions

App Concept

DrainPlanner Pro

A mobile app that lets DIYers sketch their existing plumbing setup and desired fixture layout, then generates code-compliant drain and vent configurations with step-by-step instructions and part lists. Uses AI to check against local plumbing codes and suggests optimal tee/wye placements.

Key Features

Photo-based plumbing layout input with AR overlays
Code compliance check for venting and drain sizing
Interactive 3D model of recommended piping
Material and tool shopping list with local supplier links

Target Users: DIY homeowners and handymen doing bathroom or kitchen remodeling projects

Revenue Model: Freemium with $9.99 per project unlock or $4.99/month subscription for unlimited projects

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