How to Remove Deposits in a Urinal

••• Sergi Nunez/iStock/GettyImages

Uric acid crystals are the solid residue of urine that collect on the inside of urinals, and they can be very difficult to remove. Traditional cleaning products such as soaps and strong detergents are ineffective at breaking down these crystals. The best choice for removing these deposits from a urinal is an enzyme-based cleaner specifically designed to bind to and break down the uric acid crystals, while also destroying the odor-causing bacteria around the crystals. You can find this kind of cleaner online or in janitorial supply stores.

Removing Fresh Urine Deposits

    Soak up as much urine from the urinal as possible by blotting with paper towels.

    Soak the affected area with an enzyme-based cleaner.

    Remove residue, after urine odor and stain are removed, by blotting with a damp paper towel.

Removing Old Dried Urine Deposits

    Saturate the area with enzyme-based cleanser.

    Cover with plastic wrap for 24 to 48 hours, allowing the product to stay moist and effective longer.

    Allow to air dry. If the stain is still visible after air drying, repeat Steps 1 and 2 until the deposits are gone.

    Remove residue by blotting with a damp paper towel.

    Things You'll Need

    • Rubber gloves
    • Paper towels
    • Enzyme-based uric acid cleaner
    • Plastic wrap


    • Wear rubber gloves when working in urinals or toilets.

Related Articles

How to Clean Geodes
How to Remove Bee Propolis Stains
Uses of Alum Crystals
How to Make Borax Powder
How to Neutralize an Acid
How to Remove Acetone Residue
The Common Uses for Tartaric Acid
List of Household Bases & Acids
What Is Drusy Quartz?
What Is Anhydrous Methanol?
How to Test for Hydrochloric Acid
Hydrous Vs. Anhydrous
How to Use Bleach on Gold Ore to Remove Gold
Disposal of Boric Acid
How to Use Sodium Perborate
How to Reactivate a Desiccant
How to Clean Drusy Quartz
White Vinegar & Isopropyl Alcohol Uses
Good News! Tooth Regeneration Could Replace Fillings