There are 2 switches that controls the speed of the pump and how it works. The first switch is located in the power cord and contains the connection box that the Flow Monitor wire snaps into.

This will start the pump and within a few seconds you will have hot water everywhere in your home. The amount of time that you wait varies from home to home and is dependent on how far the sink is from the water heater, the size of your water pipes and how many turns there are in the water pipes.

Water is quickly heated by an on-demand water heater when a hot water faucet is turned on but it can still take “forever” to get hot water at your sink or shower.

WaterQuick Tankless can be installed in several different configurations. The circulation pump and Flow Monitor can be installed in either the cold water supply line or in the hot water line going out into the house.

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One safety feature is to delay turning on the heat until the water has been moving for a few seconds. This adds to the time that hot water takes to get to your faucet.

Insulating your water pipes is also a great way to reduce water waste, especially if your household tends only to require hot water during certain periods of the day. In most cases, well-insulated water pipes will mean that you only have to wait for hot water twice daily, during the morning and evening.

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On-demand water heaters turn on when a hot water faucet is turned on. But before it starts heating the water it must make sure that the water is flowing.

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Products like Shower Start TSV by Evolve Technologies are innovative ways to decrease water loss through "behavioral waste." Since most people either brush their teeth or do other bathroom tasks while waiting for the shower to heat up, not only is cold water lost down the drain but even hot water can be lost as most of us don't merely sit in front of their shower waiting for it to heat up. The Shower Start TSV has a temperature-sensitive switch that will lower the water flow to a trickle once the water reaches 95 degrees. This setup can save countless gallons of unintentionally wasted hot water at the start of every shower.

To activate the WaterQuick Tankless hot water delivery system, simply turn on any hot water faucet in the house and quickly turn it off.

The system you need is WaterQuick Tankless – the only hot water circulation system specifically designed for tankless water heaters.

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In most cases, the hot water recirculation pump has a motion sensor located near each water fixture in your home. This sensor activates the circulation pump each time you turn the water on. The system includes temperature sensors and a check valve that prevents water from going back into the return plumbing line. The recirculation pump actually moves water in the line back to the water heater, thus reducing the amount of time needed for hot water to reach your faucet.

LaingRecirculatingPump

Water pressure regulators or pressure-reducing valves (PRV) are compact valves used to reduce high incoming water pressure from the public water main.

Turning on any hot water faucet in the house to start the pump. Turning off the faucet will stop the pump (assuming that the Bridge Valve has not been installed yet).

The potential water saving in the estimation above fails to take into account other important factors. Firstly, the expected 31 gallons of daily water savings only holds if households were only turning on their faucets and showerheads once the water in the pipes had completely cooled down. However, in the case of showers, most people will bathe either in the morning or in the evening. If you have installed hot water pipe insulation, hot water will appear almost instantly if you take a shower shortly after someone else in the household. This fact will drastically reduce the volume of wasted water.

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Connect the wire from the Flow Monitor to the connector in the electrical wire from the pump. Set rocker switch to the Auto or II setting.

SubmersiblerecirculatingPump

For most people, the idea of taking a cold shower at 5 am on an early December morning is comparable to torture. For this reason, 98.7 percent of homes in the United States have indoor plumbing that includes, among other things, a steady supply of hot water. However, when we take our early morning showers, most of us let the water run until the hot water emerges from the faucet. If your water heater is in your basement and the master bathroom is on the second floor, you might have to wait up to 90 seconds before the hot water begins to flow. Hot water recirculation pumps are one way to cut back on the amount of water that most homeowners waste when waiting for hot water to emerge from our faucets and showerheads. This article takes an in-depth look at the pros and cons of hot water recirculation pumps.

If you live in a state (such as California) where water prices are continually increasing, a hot water recirculation pump that comes with a programmable timer might end up saving you money. However, there are other water and electricity savings technologies that are more efficient and a better deal.

Waterrecirculatingpump

And it needs to be a system that does not operate continuously (continuous operation voids the water heater’s warranty) and that does not keep your water lines hot unless there is a demand for hot water (wastes energy and promotes pinhole leaks).

Recirculation pump washing machine

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The pump and Flow Monitor can be installed in the hot water line that comes out of the water heater and goes into the house. It does not need to be located next to the water heater but it needs to be located before the first hot water lateral.

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The Advanced Bridge Valve should be installed under the kitchen or bathroom sink that is the farthest fixture from the water heater. Branched plumbing systems will need an Advanced Bridge Valve at the end of each line. Advanced Bridge Valves are available here:

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If you have to wait 90 seconds for hot water to appear every time you take a shower, the amount of cold water going down your drain adds up quickly. The average showerhead uses 2.1 gallons per minute (GPM) / 7.9 liters per minute (lpm), meaning that you could be wasting three gallons of water before you ever step foot into the shower. While low-flow showerheads can reduce wasted water, there is still a waiting time that leads to inevitable water loss. The water that goes down the drain will add up with each time you wash your hands, the dishes, brush your teeth, or turn on any faucet in your home.

Grundfos recirculation pump

The orientation of the pump can be changed by unscrewing the 4 hex head bolts (circled in picture) that hold the can and volute together and rotating the can as necessary. The black electrical box with the 3 speed toggle switch does not need to be on top.

Secondly, hot water recirculation pumps use a decent amount of energy - this also needs to be factored into potential savings. A pump that consumes 25 watts of power would use around 200 kWh of electricity each year. The average price of electricity in the US and Canada is $0.13 per kWh and $0.17 per kWh, respectively. So, you are looking at between about $26 and $34 each year, just to run your pump. Even if you were to trust the exaggerated expected water savings of 11,000 gallons each year, the cost of electricity to run the pump would still be more expensive than the average water savings for the vast majority of the country. Even without factoring in the $200 to $250 price tag of the pump itself (not to mention plumbing installation fees), there is no payback period.

Some models of hot water recirculation pumps come with timers that allow you to run the pump only during specific periods of the day when hot water is in the highest demand. For example, say you only run the pump for two hours in the morning and three hours in the evening. Then, you could potentially cut the annual electricity use down to 40-50 kWh, or less than ten dollars per year in electricity costs.

Home owners that have recently purchased a tankless water heater are surprised that it actually takes longer for the water to reach the faucet than it did with a traditional tank style water heater.

If you install the circulation pump and Flow Monitor in the cold water line it must be located on the pipe that is the sole supply of water for the tankless heater. If it supplies water to any other fixture it may lead to false activation of the pumping system.

Watts Premier is one company that specializes in selling hot water recirculation pumps. According to their calculations, the average household in the United States wastes 11,461 gallons of water each year while waiting for hot water to appear.

We love tankless water heaters because they are more energy efficient, you will never run out of hot water (when properly sized) and they take up less space.

The volute of the pump (silver part) can be installed in either a vertical or horizontal orientation. However the can (blue part) must be installed in a horizontal orientation.

Note: If the Bridge Valve has been installed the pump will continue to run until 95°F water reaches the sink where the Bridge Valve is installed. The temperature sensor in the Bridge Valve will shut off and the water will stop flowing (unless a hot water faucet is open).

It takes a lot of energy to heat water instantly and it would not be good to apply that concentrated energy if the water is not moving. Of course water heaters have safety mechanisms built in to prevent this from happening.

This pump is supplied with a grounding conductor. To reduce the risk of electrical shock, be certain that it is connected only to a properly grounded grounding type receptacle.

Hot water recirculation pumps are a nice convenience that allows you to benefit from an immediate supply of hot water to all of the faucets in your home. Instead of having to wait for the water to heat up every time you take a shower, wash your hands, or do the dishes, these unique systems will pump hot water through the hot water piping system and back to your heater. Sometimes these systems work with the cold water line. At other times, they have their own dedicated plumbing line.

Recirculatingwater Pump for Fountain

Install pump and Flow Monitor into the water line using the appropriate fittings. We suggest using at least one union for ease of assembly.

Note: If water continues to flow, check to make sure that the water has been completely turned off. If the valve does not shut off the water flow completely turn off the valve supplying water to the house or at the water meter.

The safe operation of this pump requires that it be grounded in accordance with the national Electrical Code and local government regulations.

Note: Make sure the arrows on the pump and Flow Monitor are pointed in the direction of water flow (into the the water heater on the cold side and away from the water heater on the hot side).

Note: It is important that you take into consideration how the pump will be supported and where there is access to an electrical outlet.

A point of use tankless water heaters is usually located close to the faucet or showerhead. This strategic placement can drastically reduce the amount of wasted cold water. Because on-demand water heaters don't have a storage tank, there are no standby energy losses during periods when hot water is not being consumed.

RecirculatingPump for pool

Continuously running hot water through an on-demand water heater will void the warranty and quickly wear out the equipment.

So, we have found that hot water recirculation pumps probably don't make economic sense for most homeowners based on these calculations. In many cases, the electricity cost of running the pump will cost you more than any expected savings from a reduced water bill.

But in order to get hot water faster without wasting water down the drain you need a circulation system. One that returns the cold water in the hot water line to the water heater and one that has a high speed pump to move the water faster than just water pressure alone can.

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They arrived at this conclusion by calculating the average length of piping in a home (just over 125 feet), which holds about 3.14 gallons of water. If a household draws water ten times per day, over 31 gallons of water each day could be wasted while waiting for the hot water to appear. With the average national cost of water rising rapidly, a hot water recirculation pump could easily save you upwards of $50 each year. Since these pumps cost between $200 and $250 each, you could pay back the investment within a couple of years.

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