- to open the tank and retrieve it.
- Warranty concerns: Some manufacturers restrict what can be placed inside their tanks or warn against unapproved products and methods. Check your specific toilet’s care instructions.
Not every toilet will experience damage if a small foil ball is placed in the tank. But that doesn’t make the practice useful or worth recommending.
Manufacturer guidance is especially important when it comes to cleaning products. For example, Gerber warns that certain chlorine- or bleach-containing in-tank cleaners can damage tank components and affect warranty coverage.
That warning
