How to get rid of urine odours in urinals?

Our tips

Urine odours from urinals can come from two sources: 

  • The urine that misses the urinal & ends up on the floor, wall, grout, tiles and the surrounds of the porcelain or stainless steel bowl. 
  • The urine in the urinal bowl and uric acid crystal build up in the S-bend of the pipe.


When urine dries it crystallises. The uric acid crystals are the source of the odour, as they get embedded into both hard and soft surfaces.  Conventional cleaners can remove the urea and urochrome components of urine because they are water soluble, but will leave behind the non-soluble uric acid crystals that can only be removed using a bio-enyzmatic product such as urineFREE. Any moisture or heat will reactivate these crystals and the odour will return.

The first odour source, outside the bowl, is easily eliminated by using urineFREE. Saturate the affected area with urineFREE. Allow to air dry and once dry, rinse with water to wash away the residue from the biological activity. We suggest two to three treatments in succession to eliminate the accumulated urine build-up and then regular maintenance as required.

The second source of urine odours, the bowl and S-bend of the pipe, will take a little more effort. There are two types of urinals we see in the market today, water-flushing and waterless. Both are susceptible to uric acid crystal build-up.

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Water-flushing urinals

With the water-flushing urinal, the uric acid crystals get lodged in the S-bend and can result in the bowl overflowing. If you ran a camera through the pipe you would see a solidified ball of uric acid crystals.  When the urinals are not in use, the urine odour can escape and will activate with urination.

Instructions: To solve this problem, when the urinals are not in service, turn off the water and saturate the uric acid crystals in the s-bend with urineFREE.  To “eat” these large number of crystals will take some time and several treatments but eventually they will be eliminated. If the urinals are flooding and you can’t wait for the treatment to work, call in the plumber. After the plumber clears the line, commence using urineFREE to avoid a recurrence.

Waterless urinals

With the waterless urinal, most of them, but not all, use a sealant that is lighter than water and the urine passes through the sealant and the sealant prevents the odours from escaping. Some waterless urinals have a cartridge (a trap) that urine flows through and into the sewer line. If the sealant is not topped up periodically and the cartridge is not cleaned regularly of uric acid crystal build-up, the urine odours will return.

Instructions: The solution is to saturate the bowl and cartridge with urineFREE to prevent the uric acid build-up on the cartridge and then make it an ongoing part of your urinal maintenance program.

All-in-one product

urineFREE is a powerful urine stain AND smell remover. It works on all types of urine, whether pet or human — guaranteed to work or your money back! Our product is 20% more concentrated than other products, and contains a bacteria that eats up the uric acid crystals, which are the main culprit when it comes to urine smells and stains.

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We are a conscious business because we care. We care about the environment and your health, so our products are non-toxic and safe to use around your family and pets. They are also eco-friendly, septic tank safe, and won’t hurt the planet. Because we also care about our animal friends, our products are vegan and cruelty free.

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Trust a product tried and tested by hundreds of happy customers. If you think urineFREE sounds too good to be true, read our reviews or contact our friendly customer service. If you’re not 100% happy with the product, we will give you your money back (guaranteed)!

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