Referred to as Structural Waste, every building has unique plumbing behind its walls that dictates the amount of cold water that has to exit the pipes before hot water makes its way to your shower head or bath. This volume of cold water varies based on the size and length of the pipes running from the water heater to your bathroom as well as how fast it travels through your pipes.
The research shows that, on average, you’ll spend about 1 minute away from a running shower after the hot water has actually arrived. This happens because you’re completing your normal routine – turning on the shower to purge the Structural Waste (cold water) and then leaving to do something else like brushing your teeth, making the bed, using the washroom … while your waiting for your hot water to arrive. You don’t mean to waste the hot water, but like everyone else, you’re too busy to stand around waiting for your shower to get warm.
Research shows 75% of users regularly walk away after turning their shower on and waiting for the cold water to exit; not returning until their alternate activity (shaving, brushing teeth, using washroom …) is complete. As a result about 15% of your hot water is accidentally wasted before they ever get in. read the report
Did you know that the speed at which the cold water purges during you shower’s warm up has a big impact on the total gallons lost? That’s right, slower speeds greatly increase not only the time, but also the total volume of cold water that has to be purged.
For example low flow shower heads can increase the actual amount of structural waste you have to purge by 50% - 100%. This happens because as the water’s velocity is reduced, more heat is lost to the plumbing system and its surrounding environment as it travels through the pipes.
That’s right, as the hot water is released from the water heater and travels to the bathroom, it has to first push the cold water out of the pipes. The slower the hot water travels, the more time it has to mix with the cold water in front of it and to also give up more of its heat to the cold pipes surrounding it. This effect produces additional amounts Structural Waste. Yes, this extra water is a little warmer than the cold coming out before it, but it's still not warm enough to comfortably shower in.But what if there was a way for tub/shower combo bathrooms to significantly reduce this effect by having your hot water arrive much faster while saving more water and energy than you ever thought possible? And what if all of that could be easily and automatically done without asking the user to change their behavior or typical warm-up routine?
The Tub Spout Solution?:
The answer is simple. Purge the cold water though the tub spout. Water flows through it up to 3 times faster than through a low flow shower head. Wait times can be slashed to a handful of seconds instead of minutes and the volume of cold water wasted can be reduced by up to a half a gallon or more.
You might ask, “But what if people still walk away, won’t that waste even more water since the tub spout is flowing at up to 5 gallons per minute? And if their gone for just two extra minutes doing other things that’s 10 gallons of cold and hot water being wasted.”
Evolve's Auto-Diverting Tub Spout System does just that. Designed specifically for tub/shower combos, it automatically stops the flow from the tub spout, preventing Hot Water (both water & energy) from being wasted while no one is in the shower, as soon as the bathing temperature water arrives.
It then automatically diverts the water to a specialized shower head that begins trickling to simply and effectively let the user know their shower is now warm and waiting.
When the bather returns from their tasks (picking out clothes, making bed, shaving …) they pull a cord or push a button to activate the shower head’s normal flow, step in, and begin showering. It’s truly that simple.If a bath is preferred, simply activate the tub spout instead. The system even automatically reset itself for the next user how it works
Utilizing Evolve's ShowerStart technology, either in our Evolve shower head or our TSV adapter placed between your existing shower head and pipe, eliminates the additional waste created once the hot water arrives. As the hot water reaches the shower, the flow will slow to a trickle. This trickle is just enough to let the user know the shower is ready and waiting as well as allow for any cooling water to escape if the user is distracted for an extended period of time. The Shower head will continue to trickle until the user completes their task(s). Learn more about using ShowerStart TSV in stand alone showers
In addition to speeding hot water delivery, reducing the amount of cold water you have to purge and eliminating accidental hot water waste, the auto diverting tub spout system also saves by stopping tub spout leaks and providing efficient showering. In total it can save up to a whopping 16 gallons per shower taken.