Start with the liquid that reaches the electrode, and identify where each reported value comes from. A seawater intake sample, a brine-tank specification and the feed after dilution describe different process locations. They should not be treated as interchangeable inputs when requesting an electrode configuration.
For equipment engineers and technical buyers, the first question is therefore: does this information describe the proposed cell feed? The comparison below helps organize that review. It does not rank seawater against prepared brine or establish that an electrode can operate in both.
Map the feed route before comparing numbers
For a seawater project, identify the intake and any treatment steps before the cell. Mark where the available water analysis was taken. Ask the equipment team whether it represents the liquid reaching the electrode, or whether additional information is needed.
For a prepared-brine project, distinguish the water used to dissolve salt, the stored brine and any subsequent dilution. As a documented example, the Evoqua OSEC B-Pak technical sheet describes softened water used for brine preparation, pumped brine delivery and additional softened water for dilution. This illustrates why a brine-tank value may describe a different location from the final feed.
Source: Evoqua OSEC B-Pak technical sheet, WT.085.090.000.UA.PS.0514, ©2014, page 2, “Process Description.” This historical equipment example is not a specification for KUAYANG electrodes.
Use the actual equipment drawing or a simple list of process locations. Mark each step as installed or proposed; a planned treatment stage is not evidence of the current feed condition.
Compare the information, not just the water-source label
Use the following comparison checklist to identify which documents and values are available. The entries are questions to resolve with the equipment team, not mandatory treatment steps or universal operating limits.
Check 1: Liquid and location
Seawater project: Identify whether the information concerns the intake or the feed after treatment. Prepared-brine project: Identify whether it concerns preparation water, stored brine or feed after dilution.
Check 2: Salt-related data
Seawater project: Provide available analysis or salinity records and their locations. Prepared-brine project: Keep stored-brine and final-feed data separate where both exist.
Check 3: Temperature and flow
Seawater project: Identify available cell-feed values and any known operating range. Prepared-brine project: Identify values applicable after any mixing or dilution.
Check 4: Supporting documents
Seawater project: Include available water-analysis records and the relevant process description. Prepared-brine project: Include available water records, salt documentation and preparation details.
Check 5: Process changes
Seawater project: Identify treatment or source changes being considered. Prepared-brine project: Identify changes to water supply, salt supply, preparation or dilution.
Check 6: Unresolved information
Seawater project: Name who can confirm whether the available records represent the cell feed. Prepared-brine project: Name who can clarify the relationship between tank data and cell-feed conditions.
For every value, record the location, date, unit and basis. State whether it was measured, calculated, taken from an equipment rating or specified as a project target. Preserve the original description: a value labelled salinity, sodium chloride concentration or conductivity should not be silently relabelled as another quantity.
If a range is unavailable, say so. A single result should be recorded as a single result, rather than presented as a verified operating range.
If no cell-feed measurement or sampling point is available, identify the nearest documented location and ask the equipment team what further information is needed; do not relabel that record as a cell-feed measurement.
Keep feed conditions separate from product targets
The requested hypochlorite product concentration and chlorine-output target belong in separate fields from feed-water data. Include them in the project information, but do not enter either as the feed’s salt concentration.
Keep the original units and reporting basis for product concentration and output, including whether a percentage is stated by mass or volume and whether the concentration is reported as sodium hypochlorite or available chlorine; if the document does not specify this, mark the basis as unknown.
Similarly, a proposal to change from prepared brine to seawater requires an equipment and operating-condition review. Matching an existing electrode’s dimensions does not establish suitability for a different feed.
Resolve the location before drawing a conclusion
Consider an illustrative purchasing example: two documents both say “brine,” but one describes the storage tank and the other describes feed after dilution. Different values do not, by themselves, establish a discrepancy in the electrode specification.
The useful next step is to ask which location each value describes and who can confirm the intended cell-feed condition. Keep that question open in the review record until it is answered. Do not fill the gap with a typical value from another installation.
Bring the feed record into the electrode review
Add the equipment model, available electrical information, interface drawing and requested electrode quantity to the feed record. Our electrochlorination selection guide covers the broader equipment inputs.
KUAYANG reviews electrode and assembly requirements against the supplied project information. Brine or seawater suitability, materials, coating and operating limits require confirmation for the individual configuration.
Discuss your hypochlorite electrode feed conditions.