I have moved house and my laundry tub has a stain it looks like scrum but is smooth and has a rainbow effect above it. I have tried the Shannon Lush treatment of bicarb and vinegar no result I have also tried gumtion. Do you have a ideas? Thank you Glenda
257900cookie-checklaundry tub stain
Sugar soap should shift that. If it doesn’t, try an acidic cleaner such as Ajax Spray and Wipe