User is unsure how to properly plumb a backup sump pump discharge into an existing primary pump discharge, especially regarding check valve placement.

Existing pre-assembled systems like Watchdog don't show visible check valves, leaving DIY users unsure about proper configuration when mixing components from different brands like Zoeller.

Severity

2Mild

Willingness to Pay

implied

Added

Jun 21, 2026

Workarounds Described

posts on Reddit asking for plumbing advice

Implied Software Gaps

personalized plumbing diagram app that outputs check valve placements and merge pipe configuration based on entered pump models

App Concept

PumpPlumb Pro

A mobile app that guides homeowners through custom sump pump plumbing configurations. Enter your pump models and pit dimensions, and get step-by-step 3D diagrams showing exactly where to place check valves, unions, and discharge merge points.

Key Features

3D interactive plumbing diagram generator for custom pump configurations
Automatic check valve placement based on pump specs and backup type
Parts list with links to buy required fittings
Step-by-step installation instructions with video tutorials

Target Users: DIY homeowners who need to install or modify sump pump systems with backup pumps, especially those mixing different brands or models

Revenue Model: $4.99 per single-use guide, or $19.99 annual subscription for unlimited configurations

Existing Solutions Mentioned

Watchdog pre-assembled sump pump system

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