Chemical pumps help commercial dishwashers and glasswashers control how detergent and rinse aid enter the machine during operation.

Some machines include built-in chemical pumps, while others rely on external dosing equipment or manual chemical dosing depending on the appliance specification and installation setup.

Businesses comparing different types of commercial dishwashers and glasswashers often focus on wash cycles and basket sizes, but chemical dosing configuration can be just as important for day-to-day performance and installation.

Understanding the difference can help avoid poor wash results, chemical waste and confusion during installation or replacement.

Built-In, External & Manual Chemical Dosing

Not all commercial dishwashers and glasswashers handle chemical dosing in the same way.

Some machines include integrated detergent and rinse aid pumps that automatically draw chemicals into the appliance during operation.

Other machines may require:

• External dosing equipment
• Manual chemical dosing
• Or separate chemical setup during commissioning

This is why it is important to confirm exactly how a machine handles chemical dosing before ordering or arranging installation.

Why Chemical Dosing Matters

Incorrect chemical dosing can lead to:

• poor wash results
• cloudy glasses
• streaking
• excess chemical usage
• unpleasant odours
• and unnecessary servicing issues.

Too little chemical can reduce cleaning performance, while too much may leave residue or waste product unnecessarily.

Incorrect setup can also increase servicing issues, reduce wash quality and shorten the lifespan of warewashing equipment over time.

Consistent dosing becomes especially important in:

• pubs
• bars
• restaurants
• cafés
• hotels
• schools
• care facilities
• and other busy hospitality environments where machines run throughout the day.

Why It Is Worth Checking Before Ordering

Before ordering a commercial dishwasher or glasswasher, it is worth confirming:

• whether the machine includes built-in chemical pumps
• whether external dosing equipment is required
• how chemicals will be supplied to the machine
• and who will handle commissioning and setup.

If you are unsure which setup best suits your site, usage levels or existing installation, it is always worth checking before ordering.

At Anglia Catering Equipment, we help businesses choose commercial warewashing equipment with chemical dosing systems suited to their installation requirements, usage levels and day-to-day operation.