If you haven’t heard of waterless urinals, they are becoming quite popular, especially with businesses. Waterless urinals are a great alternative to regular urinals because they are cheaper and greener. And nowadays, more businesses and buildings than ever before are looking to save money and be more environmentally friendly.

How Much Water Can Waterless Urinals Really Save You?

So how much water can waterless urinals save? It turns out, quite a lot! First, let’s take a look at how they work:
How do waterless urinals work?

Typically, waterless urinal bodies are constructed of vitreous china or porcelain, similar to standard flush urinals. Most waterless units use a liquid sealer and rely on a density differential between the sealant and the liquid waste. The sealant is less dense than water or urine, which pass through the sealant. The sealant creates a barrier between the liquid waste and the urinal bowl.

How much water can waterless urinals save?

According to manufacturers, a waterless urinal that replaces a standard one-gallon per flush urinal can save up to 40,000 gallons of water per year. Exactly how much water you will save really depends on what type of urinal you’re replacing.

Types of waterless urinals

There are two different types of liquid-seal urinals. One type is the cartridge design, which uses various types of disposable cartridge inserts that fit into the custom-designed urinal base. The cartridges collect sediment and direct the flow of liquid waste to the drain. They also work to block odors. The integrated-trap design uses a liquid sealant instead of a cartridge. It separates the waste from the urinal bowl through a fixed basin trap or a trap built into the urinal body.

There is another kind of waterless urinal that uses a flexible silicone diaphragm instead of a liquid seal. The diaphragm lets liquid waste pass through, and then it seals in order to stop sewer gases from expelling into the room.