What does a buyer check before specifying sanitaryware?
They check water consumption against the building's requirement, compliance with the market's sanitaryware standard, and rough-in dimensions against the existing plumbing. In refurbishment, which is most of the market, rough-in compatibility decides more purchases than appearance does, because moving pipework is the expensive part of the job.
A facilities buyer is replacing fittings in an occupied building without moving any plumbing.
Reviewed 4 August 2026
Scope and specifications
- Product type and installation method
- Wall-hung, floor-mounted and back-to-wall change the installation.
- Water consumption per use
- Regulated and increasingly specified.
- Rough-in dimensions
- Decides whether it fits existing plumbing.
- Standards compliance
- Determines legality and acceptance.
- Material and glaze specification
- Governs durability and cleaning.
- Fitting and cistern compatibility
- Determines spare parts availability.
- Accessibility compliance
- Required in public and commercial buildings.
Documents buyers may need
| Document | What it proves | Where it belongs |
|---|---|---|
| Standards conformity certificateAsked at: specification and import | Conformity with the sanitaryware standard for the market | Publish it |
| Water consumption test dataAsked at: regulated specification | Flush volume and performance under a named method | Publish it |
| Flush performance test reportAsked at: commercial specification | Waste removal performance, not just water volume | Name it, share on request |
| Rough-in and dimension drawingsAsked at: installation planning — decisive in refurbishment | Fixing points and connection positions | Publish it |
| Accessibility compliance statementAsked at: public buildings | Conformity with accessibility requirements where applicable | Publish it |
| Spare parts availabilityAsked at: life-cycle assessment | Cartridges, seals and cistern parts, with availability period | Publish it |
| Warranty termsAsked at: purchase | Coverage for ceramic, fittings and mechanisms separately | Publish it |
Details for a useful enquiry
- Application and building type
- Domestic, commercial and public differ in requirements.
- Existing plumbing and rough-in constraints
- Decides feasibility in refurbishment.
- Water consumption requirement
- Frequently regulated.
- Quantity and project size
- Basis of price and supply.
- Accessibility requirements
- Mandatory in many buildings.
- Delivery and installation programme
- Fit-out sequencing is tight.
Questions suppliers ask
Why publish rough-in dimensions prominently?
Because refurbishment is most of the market and moving plumbing is the expensive part. A buyer who can confirm your product fits existing connections will choose it over a better-looking one that requires builders' work.
How should water performance be presented?
Volume per flush alongside waste removal performance under a named test method, because a low-volume product that needs two flushes saves nothing and generates complaints. Commercial specifiers understand this distinction well and are looking for evidence of both, so publishing only the headline water figure reads as an attempt to avoid the second question.
What matters most to facilities buyers?
Spare parts over a long life. Ceramic outlasts its mechanisms by decades, and a facilities team is judged on keeping fittings working. Publishing a parts availability commitment and a parts list is worth more to them than any appearance argument.
Check which documents and standards your buyer needs; requirements vary by market, customer and contract.
Plact Research. Plact's editorial desk for buyer-evidence research. Industry standards, documents and buyer questions are researched and drafted with Plact's AI tools, then reviewed by Praveen Kavuri before publication. Every claim cites the standard, regulation or public source it rests on.
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