BWT Diamond Doser - Automatic Acid Doser & pH / ORP Control for Diamond Mineraliser

BWT Diamond Dose - Automatic Acid Doser & pH / ORP Control

Connects to the Diamond Mineraliser to automate pH and chlorine management, keeping pool water balanced with less manual intervention.

• We keep these physically in stock, unlike most drop-shipping websites.

Salt and mineral chlorination naturally pushes pH upward over time. The Diamond Dose lets the BWT Diamond Mineraliser dose diluted pool acid automatically to hold pH at your chosen setpoint. Add the ORP sensor and the Mineraliser will also adjust sanitiser output automatically to match the pool's actual demand.

A BWT Diamond Mineraliser is required. Acid Dosing and ORP Control only appear in the Mineraliser's Advanced Settings menu when Diamond Dose is connected.

Probes sold separately.

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Acid Dosing Modes

• Timed Mode - doses a set daily total, split into smaller doses across the active dosing schedule. No pH probe required.
• Auto (pH Probe) - doses acid only when measured pH rises above the target setpoint. Requires the pH sensor.
• Off - disables dosing for servicing, manual chemical adjustment or an empty acid drum.

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ORP Control

With the ORP sensor fitted, the Mineraliser can run in Auto (ORP Probe) mode. Chlorine is produced while the measured ORP sits below the setpoint, and reduces or stops once the setpoint is reached. A typical starting point is 700 mV, though the correct value depends on your pool's stabiliser level, salt level and pH.

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Key Features

• Peristaltic acid dosing pump with adjustable dose amount and dose interval
• Target pH setpoint adjustable across the recommended 7.2 - 7.6 range
• Prime and manual dose function - runs the acid pump for up to 60 seconds for priming or service
• pH calibration from a water sample - enter a pool shop or test kit result to align the probe
• pH calibration factory reset if an incorrect value has been entered
• Flow interlocked - dosing only operates when the pump is running and water is detected in the cell housing
• Automatically disabled during Spa Mode

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Sensors

Configuration	pH Measurement	Acid Dose Delivery	ORP Monitoring	Auto Sanitiser Output
Diamond Dose with pH Sensor	Yes	Yes	No	No
Diamond Dose with pH & ORP Sensors	Yes	Yes	Yes	Yes

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Installation Requirements

• Acid injection manifold installed in the return line
• pH / ORP sensor manifold and sensor housing
• Vented acid drum, positioned safely away from the control unit and other equipment
• Recommended acid dilution: 1 part pool acid to 3 parts water. Always add acid to water, never water to acid.

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Maintenance

Dosing tubes, check valves and other wetted components are consumable parts and deteriorate through normal chemical exposure. Inspect the dosing tube, suction line, injection line, fittings, suction strainer and check valve regularly, and replace any tube that is hardened, flattened, cracked, swollen, blocked or leaking.

Keep pH and ORP probe tips wet. If a probe is removed, store it in the manufacturer's recommended storage solution - never dry, and never in distilled or demineralised water.

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Note: This product must be installed and configured by a qualified pool equipment technician or licensed professional. Regular manual water testing is still required. We carry more spare parts than anyone.

Manufacturer Brochures, Manuals & Part Numbers

Need specifications, part numbers, wiring diagrams or more product information? See the manufacturer documents: Diamond Mineraliser Brochure | Full User Manual