Pink Residue in Showers (Seasonal Buildup – NOT Mold)

What is the pink residue?

This is NOT mold.

Pink / salmon-colored buildup in showers is a naturally occurring bacteria that appears more often during cooler months.

Why it happens more this time of year:

• Hot showers + cold weather

• Less ventilation (windows closed)

• Moisture stays longer on grout, corners, and drains

• Soap & conditioner residue feeds the bacteria

👉 This is seasonal, very common, and not caused by poor cleaning.

What does it look like?

   

You’ll usually see it:

• In grout lines

• In shower corners

• Around drains

• Along silicone caulking

✅ How to treat pink residue (IMPORTANT)

✔ Product to use:

AJAX Oxygen Bleach Cleanser

Where to use Ajax:

☑ Grout lines
☑ Shower corners
☑ Around the drain
☑ Lightly on caulk (do NOT scrub aggressively)

🧼 STEP-BY-STEP (SEE IMAGE BELOW)

1. Remove soap residue first (rinse or ECOS APC)

2. Apply Ajax ONLY to pink areas

3. Scrub with a grout brush or hand scrubber

4. Let sit 2–5 minutes if possible

5. Rinse thoroughly

⚠️ Do NOT use Ajax on the entire shower
⚠️ Do NOT leave powder residue behind