Keep Your Tsurumi Pump Lubricated and Running Reliably

The Aquascape Pump Oil for 5-pl 5000, 9-pl 7000, 8-pn 5500, and 12-pn 10,000 Tsurumi series pumps is a manufacturer-specified gear oil used to lubricate the mechanical seal chamber and motor bearings in these professional-grade external pond pumps. Using the correct viscosity oil is essential to maintaining the watertight seal that protects the motor from moisture ingress.

Protect the Mechanical Seal and Extend Motor Life

The mechanical seal in an external pond pump runs continuously against a ceramic face, relying on a thin film of oil to prevent overheating and premature wear. Running the pump with old, depleted, or incorrect oil quickly destroys the seal, allowing water into the motor housing and causing catastrophic failure. Changing the oil on the recommended schedule, typically annually or after every 500 to 1,000 hours of operation, is one of the most important maintenance tasks for these pump models.

How to Use

Power down the pump and allow it to cool. Locate the oil fill plug on the pump body (refer to the Tsurumi manual for your specific model). Place a small container beneath the drain plug and remove the drain plug to allow old oil to empty fully. Reinstall the drain plug, then fill through the fill port with fresh oil until the level reaches the indicator mark. Replace the fill plug and wipe away any excess. Dispose of used oil responsibly at an approved facility.

Ideal for professional pond builders and property managers maintaining large-volume Tsurumi-powered water features as part of annual service contracts.