A homeowner wants to add a toilet in a concrete slab home without breaking the slab, needing a way to route waste through the wall to an existing sewer line.

No clear off-the-shelf solution for retrofitting a toilet onto a concrete slab without breaking concrete; rear-discharge toilets exist but unclear if they can connect to an existing line without a macerator or uphill travel.

Severity

3Medium

Willingness to Pay

implied

Added

Jun 28, 2026

App Concept

SlabSaver Toilet Retrofit

A conversion kit and planning tool that allows homeowners to easily install a rear-discharge toilet on concrete slabs without breaking concrete. Includes a specialized waste connector that gravity-drains into a tie-in to the main sewer line, eliminating the need for a macerator or slab demo.

Key Features

Step-by-step retrofit guide with diagrams for concrete slab homes
Customizable waste pipe connector for lateral tie-ins
Compatibility check tool for existing sewer line locations
Direct purchase links to approved rear-discharge toilets and fittings

Target Users: DIY homeowners and small contractors adding bathrooms to concrete slab homes in the US

Revenue Model: $49 one-time purchase for digital guide and compatibility tool; add-on physical connector kit for $99

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