Review on 🪣 UST FlexWare: The Ultimate Collapsible Bucket for Outdoor Adventure and Survival by Popeye Knight

This I have the product now for 10 months. Was fantastic until recently. The product is now colored against mold. I've washed it 3 times (with a scrub brush, very hot water and sudsy bleach) and the stains are still there. I left it with water in it overnight (we use it as an outdoor water bowl for our dogs) and it quickly got moldy I think due to the heat and humidity lately. I figured I'd just give it a good scratch as this silicone like material is usually advertised as mold/mildew resistant. The bucket itself was fantastic. Superior quality, durable, travel friendly. I don't regret the purchase at all. Just wondering how it could go moldy overnight.