BEFORE YOU BEGIN

• Ensure you have the proper fittings and a pressurized water source.

• Inspect the Thumper for any debris and ensure the screen is clean.

CONNECTION & START-UP

• Attach the Thumper to a hose bib or fitting.

• Tighten the adjustment screw only until slight pressure is felt against the spring. Do not over-tighten or fully compress the spring.

• The piston only needs to be slightly unseated to allow water flow.

• Turn the water on and confirm water flows from the exit port.

• A short hose can be attached to the exit port to divert water away.

ADJUSTING THE PULSE

• Slowly back the adjustment screw out until the Thumper begins to vibrate or pulse.

• A range of pulse frequencies may be ava lab e depending on water pressure.

• Hold the adjustment screw and tighten the lock nut to secure the setting.

LOCATING THE LINE

• The Thumper should continue running during acoustic locating.

• If it stops, restart and adjust to a slightly different pitch or frequency.

• Move along the route and listen for the strongest signal to trace the line.

SHUTDOWN & STORAGE

• When done, turn the water off and remove the Thumper.

• For storage, back the adjustment screw out until the spring sits loosely inside the thumper.

• Store in a clean, dry place.