Grease Trap Pump-Out vs Biological Dosing

Start with your trade waste consent. Do not treat a dosing product as permission to reduce or replace required pump-outs.

The facts behind the comparison

South East Water states that food and oil interceptor pump-outs must follow the intervals in the commercial trade waste consent. This guidance is specific to its customers. Source: South East Water — Food and Oil Interceptor.

What to compare

Decision	Pump-out service	Biological dosing proposal
Authority	Use the schedule in your applicable consent.	Ask your water retailer whether the product and use are permitted.
Scope	Confirm removal, access and service documentation.	Request the proposed treatment, dosage and maintenance scope.
Evidence	Keep completed service and disposal records.	Request evidence relevant to your interceptor and operating conditions.
Budget	Include required pump-outs and access charges.	Add product and servicing costs without assuming pump-outs disappear.

Before you decide

Find the current consent and confirm which water retailer administers it.
Ask the retailer before changing products, maintenance or pump-out intervals.
Compare written scopes using the consent’s requirements as the baseline.
Keep records of service dates, incidents and any approved changes.

What this comparison cannot tell you

No universal monthly or quarterly schedule applies from this page. A supplier’s performance claim is not approval from your water retailer, and this comparison does not certify a dosing product.

Related decisions

Discuss your waste setup with Bundle Waste.

Sources

South East Water — Food and Oil Interceptor. Why is it important. Checked 18 September 2026.