Are there any problems with hot water recirculating systems?

If you have the convenience of a hot water recirculating system in your building, there are several problems that you are likely to encounter that can hinder your system from performing at its peak. Hot water recirculation pumps are exposed to flow-accelerated corrosion, potentially a costly problem.

When to turn off hot water recirculation pump?

Making sure the pump is turned off late at night can help with some of the power waste as well; even systems that use a temperature sensing unit to shut off the pump when the water reaches a certain temperature don’t help with the power usage if the water is losing too much heat too quickly.

How does a recirculating pump in a water heater work?

A recirculating pump is typically used in pumping hot water directly from a central water heater through a hot-water pipeline, most often made of copper. At the same time, it returns (recirculates) the water that has now cooled back to the water heater for reheating.

What causes corrosion in a hot water recirculation pump?

Corrosion Hot water recirculation pumps are exposed to flow-accelerated corrosion, potentially a costly problem. The corrosion is normally caused by aggressive water chemistry or excessive flow velocity resulting in the pipes being eroded on the inside.

What causes a hot water pipe to rupture?

The corrosion is normally caused by aggressive water chemistry or excessive flow velocity resulting in the pipes being eroded on the inside. Often, the most commonly affected areas are elbows, tees, and bends where the pipe walls can become so thin to the extent of eventually rupturing.

What to do if your water heater pressure is over?

Call the gas utility company to readjust gas pressure on main supply. Technicians can not adjust main gas supply pressure. Supply gas pressure is over desired pressure Add gas pressure regulator. Call the gas utility company to readjust gas pressure on main supply. Technicians can not adjust main gas supply pressure.

Why do I have water on bottom of my water heater?

Combustion products contain water vapor which can condense on the cooler surfaces of the tank. Droplets form and drip onto the burner. This is common at the time of start-up after installation and when incoming water is cold. I. Water in the water heater bottom or on the ﬂ oor may be from condensation.