Step 1 | Filling With Water

Open top part of the bubble counterTake supplied O-ring out of the bubble counter chamberFill the chamber with water**We do not recommend mineral oil as it may contaminate your diffuser.
Step 2 | Compression Collars

Remove the compression collarFeed tubing through the collar
Step 3 | Connecting Tubing

Push the tubing onto the nipples at each end of the bubble counter
Step 4 | Installing O-ring

Install supplied O-ring on the nipple of the needle valve
Step 5 | Installing Bubble Counter

Screw bubble counter onto the needle valve. Tighten firmly to ensure an air-tight seal**Check for leaks using soap/water mix once the system is operational.