It's safe to use in any drain, like sinks, toilets, tubs, showers, garbage disposals, and grease traps. It's also part of the EPA's Safer Choice Program, recognizing the product as a safer alternative to traditional chemicals, and contains no phosphates and is Septic Safe.

The fast dissolving pods are safe for disposal. And plumbing leaving a fresh clean scent CLR garbage disposal cleaner.

Do not use CLR Calcium, Lime and Rust Remover on any natural stone or marble (including cultured marble), terrazzo, colored grout (any other color than white), any painted, coated, sealed or metallic glazed surfaces, plastics, laminates, Formica, Corian, aluminum, galvanized metals, nickel, oil rubbed bronze, brass, ...

Is CLR Safe For PVC Pipes? CLR products are safe for all pvc products. It is also safe for copper plumbing and septic tanks. The materials to avoid using CLR on are painted surfaces, aluminum, etched glass, Formica, colored grout, natural stone, brass and copper.

CLR® Spot-Free Stainless Steel is specially formulated to be used safely on any stainless steel appliance and surface.

2 minutes After 2 minutes rinse promptly with cold water. Never leave CLR Calcium, Lime and Rust Remover on an area for longer than two minutes. If the stain does not disappear, repeat this process and add more CLR Calcium, Lime and Rust Remover solution as necessary.

According to the CLR product page, it shouldn't be used on “wood, clothing, wallpaper, carpeting, natural stones, brass, copper, aluminum, galvanized metals, any painted, coated or sealed surfaces.” Always spot test first and clean spills immediately to avoid damaging surfaces through inadvertent contact.

Inhalation: Ingestion: May cause irritation with discomfort or rash, prolonged skin contact may cause ulceration Excessive inhalation may cause irritation of the respiratory passages May cause irritation of the gastrointestinal tract with abdominal pain, nausea, vomiting and diarrhea and corrosion of the mucous ...

Clear the Inside Rust To do this, a steel pick will need to be used if the rust is accessible. If not, you can use Calcium, Lime, and Rust (CLR) that is poured into the pipe to loosen up and dissolve the rust.

For rust stains above the water line, you do not have to remove the water. Apply CLR Calcium, Lime & Rust Remover directly to the stains and scrub with the brush or pumice stone. Wait for 2 minutes then flush the toilet. Repeat this process as needed until the hard water stains begin to be removed.

We do not recommend that CLR products be used on any metals except for chrome or stainless steel. Any 'polished' finish usually has a coating and most nickel materials are combination metals (containing zinc) and CLR products could compromise the finish.

within 3 years How long is the shelf life of CLR Calcium, Lime and Rust Remover? We recommend using or disposing of CLR Calcium, Lime and Rust Remover within 3 years. Make sure cap is securely fastened after each use.