Plastic drain pipe outer diameter is slightly smaller than chrome pipe, causing standard tapered washer to be too thin to create a watertight seal.

Standard tapered washers for slip joints don't accommodate the small diameter difference between plastic and chrome pipes, and there is no readily available fatter washer or adapter for this specific transition.

Opp. Score

Severity

2Mild

Willingness to Pay

implied

Added

Jun 1, 2026

Workarounds Described

used plumber's putty to fill the gap and create a temporary seal

App Concept

FitSeal Adapter Kit

A universal adapter kit for transitioning from chrome to plastic drain pipes, including a thicker tapered washer and a supporting sleeve to take up the gap. Eliminates the need for putty hacks and provides a permanent, leak-free seal.

Key Features

Adjustable-thickness tapered washer for different pipe diameters
Including a support sleeve that bridges the gap
Corrosion-resistant materials
Compatible with standard 1-1/2 inch slip joints

Target Users: DIY homeowners and plumbers dealing with transitioning from chrome to plastic drain pipes in residential sinks.

Revenue Model: $12.99 per kit at hardware stores, also available in multi-pack for plumbers at $9.99 each when buying 10+.

Existing Solutions Mentioned

plumber's putty

Part of App Idea

Plastic drain pipe outer diameter is slightly smaller than chrome pipe, causing standard tapered washer to be too thin to create a watertight seal.

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