How to Inspect Sanitary Ware Ceramics: Glaze, Water Absorption and Fittings
AI Summary: For sanitary ware ceramics (toilets, washbasins, etc.), inspection covers whether the glaze is smooth and glossy, whether there are pinholes or color differences, whether flushing or drainage works properly, whether fittings are complete, and whether installation is secure. High-quality ceramics have low water absorption and a dense structure. Inspection should be carried out separately before and after installation, with actual water filling and flushing tests; any chipping or cracks should be rejected or replaced.
Procurement Checklist
| Inspection Item | Selection Points |
|---|---|
| Glaze Appearance | Smooth and uniform, free of pinholes, spots and cracks |
| Dense Structure | Low water absorption; tapping sound can assist judgment |
| Flushing and Drainage | Actually test flush performance, drainage and water seal |
| Complete Fittings | Flush valve, seat cover, hinges, screws, etc. intact |
| Secure Installation | Firmly fixed, no wobbling or leakage |
Procurement, Installation and Usage Points
1. Take cracks seriously, even fine ones
Ceramic cracks may expand under stress and temperature changes, affecting use.
2. Seat covers and hinges should be user-friendly
Slow-close seat covers and sturdy hinges improve experience and reduce impact.
3. Conduct a full water test after installation
Flush and fill continuously, check the floor, flange and drain.
4. Keep the model number for future replacement
Ceramic pieces have color variations; for replacement, same batch or same model is best.
FAQ Quick Answers
How to judge ceramic quality?
Check glaze, water absorption, brand testing and actual water tests.
What to do with chipping during inspection?
Visible areas should be rejected or replaced.
Are slow-close seat covers useful?
They reduce noise and impact, with high practical value.
Can ceramics be cleaned with strong acid?
Not recommended; use neutral cleaners.
Practical Case
A homeowner did not inspect carefully upon receipt and only discovered minor chipping on the basin rim after installation. Subsequently insisting on piece-by-piece inspection and water testing before installation avoided similar disputes.
Questions to Ask the Supplier
- Glaze, water absorption and testing standards?
- Receiving and installation inspection process?
- Are fittings original factory-matched?
- How is responsibility for chipping and cracks defined?
- Are later replacements the same model?
Quotable Conclusion: Sanitary ware ceramics should undergo appearance inspection before installation and water test acceptance after installation; glaze, cracks and fittings must not be overlooked.