KEY TAKEAWAY
Size for the treated water you need during the available operating hours, with the actual feed conditions included.
Separate daily volume from peak flow
A hotel, restaurant or workshop may use a known volume each day but draw it in short peaks. Record the daily treated-water demand and the highest simultaneous outlet demand separately. Storage and distribution equipment can bridge those peaks when correctly designed.
As a starting arithmetic check, a requirement of 12,000 litres over 10 operating hours is 1,200 litres per hour of product water. That is a demand calculation, not a final plant rating or a guarantee of output.
Specify what the capacity label means
Confirm whether a quotation states permeate output or feed flow, whether gallons are US or imperial, and the temperature and salinity used for the rating. A nominal GPD label alone is not enough to compare two systems.
Ask the supplier to state expected product flow, recovery, feed requirement and concentrate flow for the actual site water. Membrane projections and pretreatment requirements should be based on the analysis, rather than the destination country.
Provide the project inputs
Include the relevant site and authority requirements for the proposed use. A process-water specification and a drinking-water specification should be assessed separately.
- Daily demand, peak draw and available run hours
- Feed source, laboratory analysis and seasonal variation if known
- Required product-water specification and intended use
- Electrical supply, installation space and storage arrangement
- Destination city and service or spare-parts requirements
Compare the complete treatment package
A useful comparison includes pretreatment, RO, instruments, storage, distribution, commissioning and operator training. Identify which items are included and which remain with the local installer.
For a GCC enquiry, send Aqua Best the demand calculation and water analysis so the proposed commercial or industrial RO arrangement can be reviewed against your project conditions.
