water heater leakage

In Singapore, whether it is a HDB, apartment or landed residence, most of them have a water heater. Because it allows everyone to adjust the water temperature when it feels cold, it is easy to use and not complicated, so it is very popular among the public as one of the must-have home appliances.

But once the water leaks, it becomes everyone's nightmare, especially if the storage heater leaks a surprisingly large amount, and there is no warning, it often leaks suddenly in the middle of the night, causing the homeowner to be unable to sleep well.

There are also many types of water heaters, such as instant heater, storage heater, multipoint heater, gas heater and the relatively rare solar heater. No matter which water heater it is, it has the possibility of machine aging and water leakage, and the reasons for water leakage of each water heater and the methods of repair are different.

water heater leakage

How to Fix Water Heater Leaks

A water heater is a household appliance that heats water and supplies it for bathing, washing dishes, laundry, and other purposes. Water heaters usually store heated water in a tank, but some heaters circulate hot water directly from the heating unit to the tap. Water heater leaks can cause extensive damage to your home, so it's essential to know how to prevent and fix them. This content will discuss identifying a water heater leak, stopping them, and setting them up if they occur.

Causes of Water Heater Leaks

Several factors cause leaks in water heaters. Minor problems are sometimes simple to solve, but significant concerns that need the water heater replacement are not uncommon. In general, it's better to hire a plumber to assist you in diagnosing issues, so you know what to do next.

Leaks from water heaters are caused by several factors, as shown in the following list:

Old Tank

Leaks in tank-style water heaters produced before 1999 are more prevalent than in modern ones. As the device ages, its components wear down, the water loses more heat, and leaks occur more frequently. Water heater leaks caused by old age are occasionally caused by rust growth within the tank. This causes corrosion, allowing water to escape through fissures, which damages the surrounding area. When it's time to replace a water heater, it's usually due to failure.

Drain Valve

Plumbers and homeowners utilize the drain valve to drain the tank for maintenance inspections and replacements. Homeowners also use the drain valve to clean their tanks. This valve loosens over time, allowing water to seep through. Leaks from the bottom of the valve indicate that it isn't waterproof. In this case, a replacement drain valve is necessary. Housekeepers can repair this problem independently; however, it's worth hearing what a plumber says before making judgments.

Too Much Pressure

Like any other plumbing fixture, water heaters operate under natural water pressure. The high temperature of the hot water generates steam and fills up the empty area within the device. The tension builds up rapidly when there is no place for the smoke to go. Leaks occur from any crack in the heater to relieve some of the strain when you set your water temperature too high or allow water into the system at tremendous pressure.

Inlet and Outlet Connections

Hot and cold water enters your water heater through the inlet connection, where it's heated, and exits through the outlet connection, where it's cooled. Water enters your faucets as a result of these connections. Over time, these loosened up, resulting in leaks. It's unusual for any other issue with the inlet and outlet connections.

Internal Tank

To finish the operation of water tank heaters, you'll need two shells. The external shell protects the internal body, which contains the water. A final layer of metal is put over both surfaces. Because they are caused by deterioration and aging in most situations, internal shell leaks are hard to spot. This type of leak cannot be seen outside the tank.

Sediment Collection

Water heaters produce debris at the bottom of their tanks as they age. This condition is not commonly caused by cleaning out a tank. Sediment builds up until fractures develop, allowing water to seep through. Tank leaks are difficult to fix since a new water heater is required and costly, so keep an eye on your tank.

Cracked Storage Tank

Most water heaters include an extra tank to increase their storage capacity. The tanks are occasionally coated with glass. Over time, minerals build up on the outside of the glass and cause it to fracture. This causes the shattering of the glass, as well as leaks. In both situations, replacements are required.

How to Repair a Water Heater Leak?

Close the Water Supply Valve on the Tank

When you've verified your tank is leaking, the next step is to close the shut-off valve (turn off the water) to prevent chilly water from entering the tank if you have to restart the heater. The shut-off valve is generally near the water heater and linked to the cold water supply line. It's either a gate valve that must be turned or rotated or a pull-down handle that's simple to use.

Fix The Leak

Leaks in water connections are generally simple to repair. However, this could be excellent news for you if your water heater leaks from the top. Leaks in water links are the most straightforward repair, although more severe problems might necessitate expert assistance, such as tank leaks.

Leaking Water Connections

The cold water basin and the hot water outlet are connected to your tank top. Because these lines are continually open and shut, they may loosen or disconnect with time. Check for a leak in the inlet and outlet if your water heater is leaking from this area.

A pipe wrench will suffice. However, double-check that your water heater does not have power again before connecting the connections. This is especially important if you work with the hot water outlet.

A Leaking Drain Valve

The drain valve is a component of your water heater tank's bottom. This part of the system enables you to empty your tank for maintenance. To remove sediment build-up, clean and flush your tank at least once a year. Like any other connection, the drain valve can become loose with time. If you notice leaks coming from this area, tighten it lightly with a pipe wrench to avoid over-torquing the valve, which may cause it to leak.

The temperature and pressure relief valve in your boiler is leaking.

The temperature and pressure relief valve (T&P) is a built-in component of your water heater. It's a mechanism that allows steam or water to escape from the tank to avoid overpressure or temperature build-up. If the inner temperature of the tank reaches 210 degrees Celsius or the pressure rises above 150 psi; it should operate as designed. This part of your water heater is vulnerable to leaking because it is a valve. If it becomes blocked in a partially open position, this pipe might let water flow onto your floor.

Sediment Build-Up

As previously stated, flushing your tank regularly is one way to avoid leaks (and other water heater issues). A once-a-year cleaning should be enough. After you've washed your water heater, the drain valve at the bottom will remove all remaining debris.


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