If you own a Strong Spa, you already know the aromatherapy port is one of its most underrated features. Instead of dumping scents directly into the water — which ruins chemistry, clogs filters, and voids warranties — Strong Spa uses a dry aromatherapy canister that releases fragrance through the air system. It’s clean, controlled, and incredibly effective when used correctly.

But most owners have no idea how to actually fill the canister, how much to use, how long to run it, or how to clean it afterward. This guide breaks down the entire process step‑by‑step so you can get the best scent performance without damaging your spa.

1. What the Aromatherapy Canister Actually Does

The canister sits inside the aromatherapy port and never touches the water. Warm air circulates through the canister, passes through the scented salts, and carries fragrance into the tub’s air system.

This means:

• Only dry salts go inside
• No oils, liquids, or extracts
• No direct contact with water
• No impact on pH, alkalinity, or sanitizer

It’s the safest and most efficient way to scent a hot tub.

2. How to Fill the Aromatherapy Canister

A Strong Spa canister is small, so the goal is to fill it enough to release fragrance — not pack it tight.

Step‑by‑Step Filling Instructions

1. Open the canister

Unscrew the lid or pop open the mesh top, depending on your model.

2. Add your aromatherapy salts

Use a dry spoon and fill the canister ½ to ¾ full. This gives the air room to circulate through the salts.

3. Tap lightly to settle

Don’t compress the salts — just let them sit naturally.

4. Close the canister securely

Make sure the lid or mesh top is fully locked so no grains escape.

5. Insert the canister into the aromatherapy port

Drop it straight in until it sits flush.

That’s it — the spa handles the rest.

3. How to Run the Aromatherapy Feature in a Strong Spa

Once the canister is in place, you control the scent intensity using the air dial or aroma knob on your spa.

To activate the scent:

• Turn the dial counter‑clockwise to open airflow
• Run the jets to circulate fragrance
• Adjust the dial until you reach your preferred intensity

How long to run it

Most users run the aromatherapy feature for:

• 5–10 minutes for a light scent
• 10–20 minutes for a stronger aroma

The salts last longer if you use short bursts instead of leaving the dial open the entire soak.

4. How to Remove the Canister After Use

Once you’re done with your session, it’s important to remove the canister so the salts don’t absorb moisture from the spa environment.

To remove safely:

1. Turn off jets and close the air dial
2. Lift the canister straight out of the port
3. Wipe off any condensation on the outside
4. Store it in a dry place between uses

This keeps the salts fresh and prevents clumping.

5. How to Clean the Aromatherapy Canister

Over time, salts can leave residue or become damp. A quick cleaning keeps the canister performing like new.

Cleaning Steps

1. Empty the canister

Dump out any leftover salts — don’t reuse them.

2. Rinse with warm water

Avoid soap; it can leave a film that blocks airflow.

3. Use a small brush if needed

A narrow bottle brush or mesh‑safe brush works well for:

• the inside walls
• the mesh screen
• the vent holes

4. Let it dry completely

Air‑dry upside down for several hours. Moisture inside the canister will ruin fresh salts.

5. Refill with fresh aromatherapy salts

Once fully dry, it’s ready for your next soak.

6. Tips for Best Performance

• Never add oils or liquids — they damage the canister and spa.
• Use only dry aromatherapy salts (like aromahoes).
• Store the canister outside the spa when not in use.
• Replace salts regularly — scent fades over time.
• Clean the canister every 3–5 uses for best airflow.

These small habits dramatically improve scent quality and longevity.

Final Thoughts

The aromatherapy canister is one of the easiest ways to elevate your Strong Spa experience — but only when used correctly. Filling it with the right salts, running it for the right amount of time, and keeping it clean ensures you get consistent, luxurious fragrance without ever compromising your water chemistry.