Toilet Inspection Procedure
Types of Toilet
You may have your own way to differentiate different types of toilets in the market. For example, some companies choose to differentiate their products by incorporating advanced technology. But the general classification method for toilets is by assembly method.
- One-piece toilet assembly– The manufacture attaches the entire toilet, including the tank in one coating. One-piece toilets are generally more expensive than two-piece toilet because of the lower rate of finished products. But they are durable and save on space.
- Two-piece toilet assembly– the toilet bowl and tank are separate pieces.
Please follow these toilet inspection processes. It helps you ensure your toilets perform as per quality guidelines.
Parts & Materials of Toilet Inspection
This initial part of toilet inspection is to check all components. The toilet are complete and ready for the next stage of production.
Assembly of Toilet Inspection
This inspection process checks all of the molded and constructed components made on the assembly line for defects. Minor defects such as cracks, chips and loose parts are acceptable because the factory can generally easily fix them. Label toilet systems that have obvious, major or critical defects on as “DEFECTIVE” and quarantine them.
Rubber ball test – this test verifies the structural integrity of finished toilets. Regardless of the toilet type, each toilet system is hit with a rubber ball to determine the quality of the toilet. A clear, bell-like ring indicates a good-quality product while a dull ring indicates the toilet was poorly manufactured and is susceptible to leak.
Visual Toilet inspection
Inspecting the toilet’s surface area, parts, joints, assembly and structural integrity ensures that the toilet doesn’t have any visible damage or defects from the molding and assembly process. Label items with visibly damaged as “DEFECTIVE” ,and rework them if production time permits.
Check toilet bowls thoroughly for any cracks, deformities, damage and weak bonds to ensure product quality as per ISO9001 international standards.
Coating inspection
This inspection process checks the pre-coated toilet system for any spots without the proper coating agents prior to the final coating process. Quarantine any missed coating spots on the spot to save production time.
Two-piece toilet systems also require a thorough inspection of their seams to ensure that the entire surface area of the toilet has even coating.
Final inspection
Final inspection is to determine the reliability of the finished toilets.We take various tests of structural integrity and functionality. Each toilet, regardless of type, undergoes the following:
Maximum performance (MaP) testing – this is a quantitative assessment of the toilet’s flushing power, water storage capacity and reliability. The test often uses latex sleeves filled with soybean paste as a substitute to human solid waste. MaP testing consists of the following:
- Each toilet must be able to successfully flush the contents of the bowl. We conduct a maximum of 6 trials to verify the toilet’s flushing reliability. Each trial uses a different weight, starting from 100 grams up to 1000 grams of soybean paste.
- Each toilet is analyzed and performance benchmarks should be recorded in order to ensure the product conforms to specifications. An efficiency rating is calculated to ensure MaP testing results are similar.
Quality control standards
Since toilets handle bodily waste on a daily basis, consistent performance is crucial. Toilet manufacturers commonly use these quality control standards when inspecting their products:
ASME A112.19.2 – this standard provides a series of tests pertaining to porcelain plumbing fixtures’ materials, dimensions and functionality.
ANSI/ASME 112.3.4-2000 – the standard establishes physical, performance and testing requirements for macerating toilet systems.
Environmental Protection Agency (EPA) WaterSense Standard – the standard is for toilet systems with a manufacturer’s claim of water efficiency.
