On-Demand - Hot Water Circulation Pumps

"Stop waiting "forever" for hot water in your home. Hot water circulations systems that are activated by any hot water faucet save water and deliver hot water quickly to your faucet or shower"

Image of hot water circulation pump in a single dead end plumbing line.
Figure 1: Hot Water Circulation System

Blue Diamond

Stop Waiting for Hot Water:

Blue Diamond

Proprietary Technology:

The reason you have to wait so long for hot water in the morning before anyone uses hot water there is cool water in the hot line between the water heater and your faucet or shower.

This cool water has to go somewhere before you get hot water. And it usually wasted down the drain while you wait.

  • Faucet Activated - no buttons or remotes
  • Installs at the water heater - not under a sink
  • Easy install - DIY or Pro installation
  • 3-year warranty
  • Customer service - friendly and knowledgable

Figures 1 and 2 shows a typical plumbing layout for a house with a kitchen and 1 bathroom and a traditional tank style water heater.

The red line represents the hot water line and the blue line represents the cold water line.

Typically a water heater is located at some distance, 30' to 40' or more, from where hot water is needed.

If more than an hour has passed since the last time someone used hot water, the hot water line will have cooled off.

This cool water must be removed from the line before hot water reaches your faucet.

House plumbing layout
Figure 2:
Plumbing Layout

The solution is either our WaterQuick Tankless for tankless water heaters or WaterQuick Pro II for tank style water heaters.

Installs in 1 hour and costs less than $400.

Use your existing cold water line (blue line in Figure 2) to circulate the cool water back to the water heater.

In order to accomplish this you will need a hot water pump (otherwise known as a circulation pump) and a flow sensor at the water heater, and a bridge valve between the hot and cold water valves under the farthest sink.

Circulating hot water
Figure 3:
The Concept

In Figure 3 the hot water pump is installed on top of the water heater and the bridge valve is installed under a sink furthest from the water heater.

As the hot water is drawn from the water tank by the circulation pump it pushes the cool water back through the cold water line to the water heater to be used again.

Hot water recycling

Figure 4 shows how it works:

Step 1: Turn on any hot water faucet in the house for 1 second and then turn it off.

Step 2: The circulation pump is activated

Step 3: Cool water from the hot line is circulated back to the water heater through the cold water line

Step 4: Enjoy hot water without wasting it down the drain.

Click on the picture or link below to learn more how we can save you money, time and water.

Image of a tank water heater

Traditional Tank Water Heater

Image of a tankless water heater

Tankless Water Heater


Water lines that circulate hot water from the water heater to the farthest fixture and back to the water heater have several common names:

  • Hot water recirculation line
  • Hot water circulation loop
  • Hot water circulation line
  • Dedicated hot water line

The pumps that move the water through the circulation lines also are known by several different names:

  • Circulating pump for hot water
  • Hot water circulating pump
  • Hot water circulation pump
  • Hot water circulator pump
  • Hot water circulators
  • Hot water heater pump
  • Hot water pump
  • Hot water recirculation pump