How to clean pink mold?

Vinegar kills mold. Simple and easy for your problem. Good luck Michael.

Hi there, The pink “mold” often seen in the bathroom in the form of a slimy, pinkish discoloration on sinks and tubs is actually bacteria, not mold. Specifically, it's Serratia marcescens. It thrives on soap and shampoo residues. Spray soap-scum-riddled areas with a 50-50 solution of white vinegar and warm water combined with one tablespoon of dish soap, and let the solution dwell for 15 minutes. Then scrub down the sprayed areas with a soft-bristle brush.

It is less likely mold after all that. It is more likely Aluminum Dioxide with Sulfates: AKA: Rusty Aluminum plus Gas.

People do Fart in the Bathroom, ya know...

Especially after a Good Bowl of Chili...

Aluminum Flakes and Powder does rust, eventually.

Farts do indeed cause discoloration, eventually.

Especially if the caulking includes Aluminum Powders.

As Many Window Caulkings do, the only real solution that you have besides Caulking all over again is:

A. Dig out the Little Rust Specks with a Needle of Pin or Small Brad, and then apply a Colored Sealant (FlexSeal White) over the old caulking.

B. Paint over it with a thin artistic Paint brush using something like KILZ brand primer or FlexSeal White.

I know that B works: interior and exterior. I know because I learned in Practice: anytime I install caulking around any wood frame or drywall, I paint it after I caulk rather than Caulk after Paint. This Seals the Caulking (and Metal Powders that are in it become less prone to Rust).

not mold---Stachybotrys chartarum, the pink “mold” in your shower isn’t actually mold at all. The discoloration comes from a biofilm—that is, a bacterial colony—of Serratia marcescens. The airborne bacterial species thrives in moist environments like showers, where it feeds on mineral deposits in soap scum and fatty deposits in soap and shampoo residue.While it’s harmless to most healthy people whose skin may brush up against the pink mold in a narrow shower, it can cause various ailments (e.g. urinary tract or bladder infections) if it enters the body through the eyes or open wounds. The severity and variety of these ailments increases in individuals with compromised immune systems. Better safe than sorry: It’s best to remove the biofilm before the bacteria multiply and your exposure to it increases. apply Dawn dish soap then baking soda(make thick paste) and scrub then spray on some vinegar scrub some more rinse with hot water