PlumbingInstallation & Assembly4HighHomeowner/DIYer$ explicit
A new toilet's tank-to-bowl bolts leak persistently despite multiple replacement gasket kits and installation attempts, likely due to a hairline crack or design flaw.
Off-the-shelf gasket kits fail to seal because the tank bottom is flat, causing bolts to sit at an angle, and the user cannot identify if a crack exists without a professional diagnostic tool.
54
0
Opp. Score
54
Severity
4High
Willingness to Pay
explicit
Added
Jun 7, 2026
Workarounds Described
- sandpaper sanded inside and outside of tank around washer area
- 3/8 inch wooden spacer between tank and bolt to reduce compression
- 10 repeated disassembly/reassembly attempts with different kits
- water in tank overnight test without installation on bowl
Implied Software Gaps
- App with ultrasonic sensor to detect cracks in ceramic
- Augmented reality instructions showing correct bolt alignment and torque
App Concept
LeakSeeker Pro
A smartphone accessory that uses ultrasonic or pressure-sensing technology to pinpoint hairline cracks in toilet tanks and bowls. Combined with a precision-fitting bolt gasket kit that adapts to uneven surfaces, it provides a permanent seal. No more guesswork or wasted trips to the hardware store.
Key Features
- Ultrasonic crack detection scanner that connects to phone via Bluetooth
- Custom-molding gasket kit that conforms to flat or angled tank bottoms
- Step-by-step guided installation with AR overlay
- Pressure test mode to verify seal before final installation
Target Users: DIY homeowners and plumbers installing new toilets or repairing leaks
Revenue Model: $49.99 one-time for the scanner + $19.99 per refill gasket kit
Existing Solutions Mentioned
Home depot heavy duty tank to bowl kitAmazon replacement tank to bowl kitCone gasket kit
Part of App Idea
TankSeal ProWant to go deeper?
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