6699 Tankless Water Heater Flushing Kit — Submersible Pump, Adapters, Hoses & Bucket Lid Opener

Keep your tankless system performing at its best

The 6699 Tankless Water Heater Flushing Kit is designed to simplify regular maintenance and help preserve efficiency. This all in one kit includes a compact submersible sump pump, two adapters, two 6 ft PVC hoses with washers, a 3 gallon bucket, and a bucket lid opener. It is built for straightforward setup, connecting quickly to your tankless isolation valves using the included hoses. You can mix a simple cleaning solution by combining one gallon of vinegar or a biodegradable cleaner with one gallon of water and flush the heater to help clear mineral buildup. Note that the vinegar and cleaning agent are not included with the kit.

What is inside the kit

• 1/6 horsepower submersible sump pump with a compact footprint and quiet operation
• Two adapters to fit common valve configurations
• Two 6 ft PVC hoses with washers for secure connections
• 3 gallon bucket with a user friendly bucket lid opener
• Bucket lid opener designed for leverage and safe handling

Designed for simple, flexible use

The included bucket, lid opener, and hoses are sized for convenient use around a typical home utility space. The pump offers a maximum head of 16.5 feet and a flow rate up to 1100 GPH, making it capable of moving your cleaning solution through the system with minimal effort. The pump operates at 115V/60Hz with thermal overload protection for added safety during operation.

Why this kit matters for maintenance

Regular maintenance can help maintain steady hot water flow and efficient operation. The kit is designed to support flushing routines that some users find helpful for relieving mineral scale and keeping hoses clear. The included components enable a clean, safe workflow from connecting to isolation valves to opening the bucket lid without strain.

Practical tips for use

• Follow local guidelines for disposing of used flushing solution
• Use clean water and a basic vinegar rinse to minimize residue

Whether you are preparing for seasonal maintenance or addressing a specific buildup, this kit provides a practical, ready to use solution. It pairs compact hardware with a straightforward setup, making it easier to keep a tankless heater in good working order without specialized tools.