Plumber needs to install a shower drain with no access below the shower pan after drywall is already finished.

No commercially available product allows drain installation from above when the shower pan is permanently installed and there is no access underneath.

Severity

4High

Willingness to Pay

explicit

Added

Jun 14, 2026

App Concept

DrainTop Installer Kit

An adjustable, no-remodel drain kit that allows plumbers to install a shower drain entirely from above, even without under-pan access. It includes a compression sleeve and locking ring that secures directly to the existing 2-inch riser, saving days of demolition.

Key Features

Works with pre-existing 2-inch PVC or ABS risers
No access needed below shower pan
Compression seal and locking mechanism for leak-proof installation
Fits standard preformed shower stalls

Target Users: Plumbers and bathroom renovators installing shower pans over finished drywall in apartments or remodels (small to mid-size projects)

Revenue Model: $49 per unit sold via plumbing supply distributors, with volume discounts for contractors

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