The Core Information a Dichlor Handover Must Cover
A dichlor handover for an apartment pool should include a written record of current water test results, the active dichlor feed rate and equipment settings, remaining chemical inventory with storage conditions, any outstanding maintenance or safety concerns, and a clear log of recent dosing adjustments. Without these items, the incoming manager risks over- or under-dosing, equipment damage, or non-compliance with local health codes.
The handover is not simply a change of keys. It is a transfer of operational knowledge about a stabilized chlorine system that behaves differently from liquid chlorine or salt-generated hypochlorite. Dichlor (sodium dichloroisocyanurate, typically supplied as a dihydrate granular or tablet) adds cyanuric acid to the water as it dissolves, so cyanuric acid accumulation must be tracked separately from free chlorine levels. The handover document must reflect that distinction.
Water Quality Records at the Point of Transfer
Free Chlorine, Combined Chlorine, and Cyanuric Acid
The single most important data set in a dichlor handover is the current balance between free chlorine, combined chlorine (chloramines), and cyanuric acid (CYA). Record the most recent test results, the test method used (DPD colorimetric, photometer, or test strip with noted limitations), and the date and time of sampling.
Cyanuric acid deserves special attention because dichlor is approximately 56% available chlorine and 44% cyanuric acid by weight in the dihydrate form. Each ppm of free chlorine added through dichlor also adds roughly 0.9 ppm of CYA. An apartment pool that has relied on dichlor tablets for months or years can drift well above 50–60 ppm CYA without anyone noticing, which suppresses chlorine efficacy. The handover must state the current CYA value and, if it exceeds recommended operating ranges for the jurisdiction, note that dilution or partial drain-and-refill may be required before normal dosing resumes.
pH, Alkalinity, and Secondary Parameters
Include current pH, total alkalinity, calcium hardness, and stabilizer (CYA) levels. Dichlor is slightly acidic (a 1% solution has a pH around 6.5–6.8), so pools fed primarily with dichlor may trend toward lower pH if alkalinity is not monitored. The incoming manager needs the baseline to decide whether to adjust alkalinity upward or accept a lower pH operating point. If the pool uses an automatic chemical controller, record the current setpoints for all parameters so the new manager knows whether the controller is correctly calibrated or needs recalibration.
Dichlor Inventory, Storage, and Feed System Details
Remaining Stock and Storage Condition
List the quantity of dichlor on hand, the form (granular, tablets, or sticks), the manufacturer or supplier brand, and the lot or batch number if available. Confirm that the storage area is dry, ventilated, and separated from acids, organics, and other incompatible materials. Dichlor is an oxidizer; contact with acid-based cleaners can release chlorine gas. The handover should note whether the current storage meets that separation requirement or whether corrective action is pending.
Check the condition of containers. Dichlor tablets can cake or partially dissolve if exposed to moisture, and degraded product may not dissolve at the expected rate, causing erratic dosing. Note any compromised containers so the incoming manager can quarantine or dispose of them safely.
Feeder Type, Settings, and Last Maintenance
Identify whether the pool uses a floating feeder, an in-line erosive or tablet feeder, or a dedicated dichlor dissolution tank with a metering pump. Record the current feed rate (grams per hour, pounds per day, or whatever unit the system uses) and the date that rate was last changed. If an automatic controller is linked to an ORP or chlorine sensor, note the sensor calibration date and whether the probe has been cleaned or replaced recently.
Include the date of the last feeder inspection or descaling. Erosive feeders clog with calcium deposits; tablet feeders can develop bridging. A handover that omits this information forces the new manager to discover a blocked feeder only after chlorine levels drop.
Safety Documentation and Handling Protocols
Personal Protective Equipment and Emergency Information
The handover should reference the current safety data sheet (SDS) for the specific dichlor product in use. Confirm that PPE—chemical-resistant gloves, eye protection, and if handling bulk quantities, respiratory protection—is available and stored near the chemical room. Note the location of the nearest eyewash station and the emergency contact number for the local poison control center or hazmat response.
State explicitly that dichlor must never be mixed with acid, ammonia, or other chlorine products in a single container or hopper. This is a common error during transition periods when staff are unfamiliar with the existing system. A one-line reminder in the handover document can prevent a hazardous release.
Regulatory and Log Requirements
Many jurisdictions require apartment or communal pools to maintain a written log of chemical additions and test results. Confirm whether such a log exists, where it is kept, and whether entries are current. If the incoming manager inherits an incomplete or missing log, flag this as an immediate compliance gap. Local health department requirements vary: some specify minimum free chlorine residuals, maximum CYA levels, and required testing frequency. The handover should state which regulations apply to the specific pool so the new manager can verify compliance from day one.
Outstanding Issues and Known System Limitations
List any problems that were being addressed at the time of handover. Examples include a persistent combined chlorine level that has not responded to breakpoint chlorination, a feeder that requires repair, a known cyanuric acid excess that is scheduled for partial drainage, or a recent incident where water quality fell outside acceptable limits. Providing context for these issues prevents the new manager from repeating troubleshooting steps or, worse, overlooking a hazard because it was not documented.
If the pool has supplementary systems—UV treatment, ozone, or a secondary oxidation process—note how they interact with the dichlor regimen. UV and ozone can reduce free chlorine demand but do not eliminate the need to manage CYA buildup from dichlor. The handover should clarify whether the current dosing rate accounts for those secondary systems or whether it was set for dichlor alone.
Putting the Handover Together
A practical dichlor handover for an apartment pool manager is a single document or folder that consolidates: current water test results (free chlorine, combined chlorine, pH, alkalinity, CYA, calcium hardness), dichlor inventory with lot numbers and storage status, feeder type and current settings with last maintenance date, safety data sheet reference and PPE availability, regulatory log status, and a list of unresolved issues. Each item should be dated and signed by both the outgoing and incoming manager to confirm accuracy.
The goal is not to produce a lengthy manual but to ensure the person taking over can read the pool’s current chemical state, understand how the dichlor system is configured, and act safely and legally from the first shift. If any of the required data points are missing at the time of handover, the document should state what is missing and who is responsible for obtaining it.
If you need clarification on how to structure a dichlor-specific handover checklist for your apartment pool operation, contact ENVO CHEMICAL with your pool volume, current sanitizer type, and feeder configuration so we can discuss the parameters that matter most to your system.
