Do you need a check valve on a recirculating pump?
Whenever a zone connects to the main piping in the recirculation system, a check valve is required. A proper design will have a flow control valve installed at the end of the zone to regulate how much water goes through that zone.
Can I turn off my hot water recirculating pump?
Conclusion. As you can see, it’s perfectly ok to turn off your hot water recirculating pump when you’re not using it. In fact, it’s an excellent idea to do so in order to prolong the lifetime of you pump and to save money.
Where do you put a check valve on a water pump?
Many well pumps have built-in check valves. Even if a pump does have a built-in check valve, we recommend that a check valve be installed in the discharge line within 25 feet of the pump and below the draw down level of the water supply.
Do hot water recirculating pumps run continuously?
While the system is capable of running continuously, it doesn’t always do this. Most hot water recirculating pumps come with sensors or timers to regulate operation. Sensors can detect the temperature of the hot water in the pipe, only running the recirculation pump when the temperature drops below a specified level.
Is a hot water recirculating pump worth it?
A hot water recirculating pump will save you money, especially if you have a larger family. A family of 4 with normal water usage can expect to save $50-$75 a year. Since pumps cost about $200 each, the recirculating pump will pay for itself in 3-4 years. .
What is a Recirc loop?
When you turn on the hot water tap, you have to wait for the cool water to flush out of the piping before you get hot water. A recirculating system is piped differently using a loop that travels throughout the house and gets close to all of the fixtures that use hot water.
Does a check valve go before or after a valve?
Generally, the first outlet of the pump is the soft connection (shock absorber), the next is the check valve, and then the block valve. Advantages: it can protect the check valve, especially in parallel pumps.
Do you put a check valve before or after a pump?
On booster pump applications, a check valve can be placed on the suction or discharge of a centrifugal pump. If an additional check valve is required, it should be placed after the pressure tank to allow the pump and discharge pipe to remain pressurized.