Pour your descaling chemical or enzyme treatment directly down the throat of the trap. Follow the manufacturer’s instructions strictly regarding volume and wait times. Step 4: Flush with Hot Water
For large commercial facilities, schedule professional hydro-jetting every 12 to 24 months to scour the internal walls of the main waste lines.
Best for severe, thick, old scale where the deposits have been "mineralized" with hard water or when enzymatic cleaners have had limited effect. Care must be taken to use a product designed for porcelain.
Crank the handle to rotate the spring head through the trap. This actions breaks apart the scale deposits that have been softened by your chemical treatments. how to dissolve urine crystals in urinals
Pour the recommended dosage (usually 8–16 oz) directly into the drain line, such as A-Salt or Crete .
What are you treating? (Standard flush, low-flow, or waterless)
This is a highly effective, industrial-strength option for severe clogs. However, it requires extreme caution, creates potent fumes, and can damage certain pipe materials if left too long. Step-by-Step Application Process Pour your descaling chemical or enzyme treatment directly
Understanding Urine Crystals Urine crystals form when minerals like calcium phosphate and uric acid precipitate out of liquid waste. In standard flushing urinals, these minerals mix with water minerals to create a hard, rock-like scale known as uric scale. In waterless urinals, the lack of water allows undiluted urine to react with ambient air, forming a thick sludge that hardens inside the trap cartridge and drainage pipes. Over time, this buildup restricts water flow, causes severe structural blockages, and traps bacteria that emit a persistent ammonia odor. Step-by-Step Removal Process 1. Mechanical Clearing
Specialty plumbing chemical products are formulated specifically to break down uric scale without destroying your pipes.
Put on heavy-duty rubber gloves, safety goggles, and ensure the restroom is well-ventilated. These chemicals emit strong fumes. Best for severe, thick, old scale where the
Pour the recommended amount of uric acid cleaner (usually 8 to 16 ounces) directly down the urinal drain grid.
Let the chemical sit undisturbed. For standard descalers, this is typically 15 to 30 minutes. For severe blockages using milder acids, it can be left overnight. You may see fizzing or bubbling; this indicates the acid is successfully breaking down the alkaline crystals.
| Strategy | How It Works | Best For | | :--- | :--- | :--- | | | Prevents urine from drying and crystallizing. | All restrooms. | | Enzyme Blocks | Continuously breaks down organic waste. | High-traffic restrooms. | | Proper Flushing | Ensures complete removal of urine after use. | Water-based urinals. | | Waterless Urinals | Eliminates the flush water that combines with urine to form scale. | New installations or renovations. |