Waterless Urinals; 'Ur-ine' For A Surprise!

Yes, it may sound odd that an unpleasant body fluid can be effortlessly disposed of in a urinal without the assistance of any water and, additionally, not leave behind any objectionable odor.  Well, thanks to the wonders of technology, waterless urinals are becoming increasingly popular; and the technology is astoundingly simple.

How Does It Work?

The simplicity of the workings of a waterless urinal is sheer genius.  ‘Simple’ and ‘genius’ at the same time?  It might sound like a paradox, but it’s really not.  The process goes like this:
1) Urine flows down the waterless bowl and goes through a special strainer.
2) The urine continues its flow through a special sealing liquid which is nothing more than an oil-based fluid.  In fact, even vegetable oil could serve as the oil component.
3) The urine collects in a waste pipe, below.
Now, here is where it gets quite interesting.  Since urine is denser than oil, your high-school science class would tell you that oil, then, would be the liquid that would produce the top layer or ‘floating’ layer. The  heavier-weight urine will remain below the lighter-weight oil; and once this happens, the urine is, in essence, trapped under the oil.  Then…
4) Any air bubbles will rise to the top and escape, which leaves the urine in a virtual oxygen-depleted environment.  The odor is trapped under the oil and has no way to escape out into the room.
5) Once the urine is trapped in the waste pipe, simple displacement sends it into the regular plumbing system. It’s important to note, also, that urine combined with water helps to heighten the natural odor of the urine.   With water lacking, the odors, yet again, are absolutely minimized.

Speed of Urine-Flow Is Key:

One might wonder why the urine hitting the oiled fluid doesn’t break the sealing liquid just enough and, therefore, allow odors to quickly escape.  That thought was taken into account and the potential for that problem was eliminated.  Due to the urinal’s design, the urine is slowed down just enough before it hits the oil; and, in addition, the flow speed is minimized due to no water being present in the bowl.

Two Types of Waterless Urinals:

There are two varieties of waterless urinals, cartridge based and non-cartridge based.  The cartridge based units use a replaceable, pre-filled cartridge that holds the sealing liquid.  Eventually, in any waterless urinal, the sealing liquid becomes ineffective and new cartridges are effortlessly inserted, within minutes, into the units.  Non-cartridge based urinals simply have new oil introduced into the drain hole of the unit.  The oil, on its own, settles as it should.

Water—It Needs To Be Conserved:

Here are some startling facts concerning water, which make the utilization of waterless urinals even more compelling:
Fact #1:  Global demand for water will outweigh supply by 40% once 2030 rolls around
Fact #2:  Americans flush away 5.7 billion gallons of clean drinking water every 24 hours
Fact #3:  A single flush, even from a low-flush toilet in the U.S., uses 6 liters of water which equates to 1.6 gallons of clean drinking water
Fact #4:  Less than 2% of the water on earth is the water humans and land animals need to survive
And a big pat on the back should go to the designers of the new Dodger’s Stadium that underwent a $100 Million renovation—an impressive transformation project that included all waterless urinals in the men’s restrooms—Now, THAT’s a homerun!
Many companies like Clearwater Plumbing are very savvy with this technology so finding a competent contractor these days is not too challenging.  Waterless urinals herald a major breakthrough in clean, efficient, waterless technology.  That technology saves money, saves water and saves the environment!

Karen spent her career on teaching and is now enjoying her retirement in Nebraska where she writes about Fort Worth plumbers and many other topics.