When urine sits in a P-trap, the urea breaks down into ammonia and carbon dioxide. This raises the pH, causing minerals to precipitate out of the liquid and weld themselves to the porcelain and PVC. Over months, this creates a plug that looks like a gray, crunchy stalagmite.
In this alkaline state, calcium and magnesium (found in both urine and "hard" tap water) precipitate out and bond with the ammonia and phosphate. The result is a rock-hard scale that adheres to porcelain and PVC pipes. This scale acts like a "coral reef," trapping hair, lint, and organic waste, which further accelerates the clogging process. how to dissolve urine crystals in urinals
Dissolving urine crystals is not just about aesthetics. Crystal buildup harbors that release volatile organic compounds (VOCs). These compounds cause the characteristic "urine smell" that no amount of air freshener can mask. More importantly, biofilm inside crystal deposits can contain E. coli , Klebsiella , and other pathogens that become aerosolized when the urinal flushes. When urine sits in a P-trap, the urea
: Creating a fizzing reaction can help lift deposits, though it is often more effective for general mineral stains than deep uric scale. Step-by-Step Removal Process In this alkaline state, calcium and magnesium (found
: Using urinal screens or mats can help minimize the initial formation of scale.
