Maintenance tips for enamelled cast-iron bathtubs

Maintaining an enamelled cast-iron bathtub requires careful handling to prevent cosmetic issues from becoming permanent damage. Limescale, often caused by hard water, is a common problem. According to SA Water, water containing more than 200 milligrams per litre of calcium carbonate equivalent is classified as hard and can cause scaling on taps and appliances.

For light mineral deposits, vinegar may be effective due to its acidity, but homeowners should consult manufacturer instructions first, as acids and abrasive cleaners can damage certain surfaces. Routine cleaning should involve a soft cloth or non-abrasive sponge with a mild cleaner rather than steel wool or scouring products.

For chips and scratches, enamel repair kits are available for minor blemishes, though they may only minimize rather than fully conceal damage. Exposed metal should be addressed promptly to prevent corrosion. In cases of widespread rust, deep scratches, or significant deterioration, professional resurfacing is recommended over DIY repairs.