Wondering how often you should test your bathroom’s thermostatic mixing valve? Our guide has all the answers to put your mind at ease.

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So, if you don’t want to face such issues while taking a much-deserved hot shower, we highly suggest testing your thermostatic mixing valve regularly. This article will tell you everything you need about thermostatic mixing valve testing.

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These specially designed plumbing valves allow cold and water and carefully blend them using an internal thermal component. This ensures they can deliver a mixed water stream at a pre-set temperature, usually between 39 degrees Celsius and 43 degrees Celsius.

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More often than not, the testing procedure depends on the kind of thermostatic mixing valve installed. However, some basic steps need to be followed regardless. First, you need to check the temperature of the blended water.

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Suppose the mixed water temperature is not significantly affected by any changes in the temperature of the mixed water. In that case, there is no need to adjust the thermostatic mixing valve’s water temperature. It is also possible to conduct the next test after 28 weeks from the first one.

When cold water suddenly pours down on you while showering, it could result in a thermal shock, causing you to jump back to escape the extreme water temperature instantly. It might make you slip and fall over, resulting in bodily injuries.

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One of the most common signs of a faulty thermostatic mixing valve is leaks or drips from the valve itself. If you notice water pooling on the floor, it might indicate a corrosion or sealing problem. Be sure to call a professional and qualified plumber and get it fixed immediately; otherwise, it may cause water damage.

One instance where a backflow preventer may not be necessary is if you are utilizing a gravity-fed irrigation system connected to a separate water source than your home piping. If you collect water in rain barrels to use specifically for irrigation purposes, then a backflow prevention device won't be needed to keep the water supply safe to drink.

Drastic and sudden changes in water temperature while taking a shower can cause harm to your body. Believe it or not, it can even send you to a hospital. When the thermostatic mixing valve in your plumbing system is not optimal, it fails to regulate the water temperature.

As you can imagine, a malfunctioning thermostatic mixing valve fails to blend and regulate hot and cold water, which results in a sudden increase or decrease in water temperature. Many Australians face severe scalding and shock injuries every year in their bathrooms.

On the other hand, thermostatic mixing valves work by blending cold and hot water to attain a particular temperature, and then the water is supplied through various outlets. With TMVs, the temperature is generally pre-set by a plumbing specialist. The inside component senses the thermal activity and accordingly arranges cold and hot water levels.

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There’s no clear answer, as different plumbing contractors offer different testing periods. However, as a rule of thumb, these periodic checks should be done at least once a year.

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In this section, we have tried answering several frequently asked questions about thermostatic mixing valves. Hopefully, all your doubts will be cleared once you go through this.

Another significant sign of a malfunctioning thermostatic mixing valve is inconsistent water flow. For instance, if you notice water pouring slowly most of the time, it could be because your TMV has issues. Maybe it has not been installed correctly or started to rust, hindering the water flow.

If you install it for the first time, the plumbing specialists should conduct an excellent service test after 7-8 weeks. Depending on the results obtained from the check, more tests are run. Below, we have listed some possible outcomes and the appropriate action plan.

To adjust the temperature supply of a thermostatic mixing valve, you need to remove the cap on the top of the valve. Then, use a close-fitting spanner to change it. To decrease the temperature, turn clockwise and to increase the temperature, turn anti-clockwise.

If you don’t want your water to have such adverse effects, installing a tmv valve is the only option. Fortunately, both commercial and residential properties in Australia are installing these devices to ensure the safety of their users.

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Consequently, it is crucial to remember that fluctuations in the water temperatures detected during the checks could also result from unstabilised water supply conditions, which is essential to keep in mind. Undoubtedly, getting an audit of the water supplies is imperative to achieve this goal.

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With that, we have finally reached the end of this article. We hope by now you know pretty much everything about the importance and testing procedure of thermostatic mixing valves.

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To install a backflow preventer in your watering system, be sure you place it at the beginning of your tubing before any of the other irrigation pieces like the timer or pressure regulators. Check valves are an option, but they can be easily overcome by a large amount of water. A vacuum breaker is a great choice for your backflow device but be sure it is located above your highest sprinkler head. Air bleed valves are placed at the highest points in the system. They are designed to prevent emitters from sucking in dirt particles once the system shuts off. A useful part of the irrigation system, they are not made to prevent water from flowing back into the municipal pipe.

Also known as TMV, a thermostatic mixing valve is a unique plumbing valve that mixes cold and hot water to control the temperature of hot water outlets to safe levels. They are widely used in homes, healthcare facilities, and schools to protect individuals by minimising the risk of scalding from boiling water in wash-hand basins, baths, and showers.

As soon as noticeable variations in the water temperature are detected, it would be best to make the necessary temperature adjustments as quickly as possible. It is recommended that the next test be conducted 21 weeks after the previous test date. Moreover, if you notice a minor variation in the temperature of the water, you need to make the necessary adjustments again if the temperature has changed a little. Following this, the test should be conducted after 28 weeks, after which it should be repeated.

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Before we sign off, here’s our last word of advice: We highly recommend hiring a reputable plumbing specialist to deal with issues with your plumbing system. This is because they are well-versed with all the necessary know-how and equipped with the tools and resources to conduct the tests effectively. If you are in Perth, contact our reliable plumbers.

Remember that installing a thermostatic mixing valve is just the first step. P periodic checks of the valve’s operation are an absolute must to ensure it functions appropriately.

Well, certainly not! After work, a hot shower offers numerous benefits, from muscle relaxation to easing stress. However, a faulty thermostatic mixing valve can ruin your experience and leave you with serious injuries.

Then, detach the cold water supply from the thermostatic mixing valve. After that, wait five seconds and check if the water temperature is under 39 degrees Celsius. If you don’t notice any considerable changes, the thermostatic mixing valve is working correctly.

Drip irrigation systems are easy to manage and provide tremendous versatility for watering your garden and landscape. However, if you, like most people, are drawing water from the same source you drink from then extra care is needed. If you're thinking about using fertilizers, chemicals or other additives in your drip irrigation system, then a backflow prevention device is an essential part of your drip irrigation supplies to prevent the undesired reversal of liquid. Even if you don't use these products, there is still potential for contamination from neighboring yards or animal waste. While some municipalities require that backflow preventers are used in irrigation systems, it may be a good idea to use one even if it isn't required.

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Boiling water pouring down your body can cause burns, damaging your skin. Note that young children and the elderly are more prone to third-degree burns.

It is important to be aware of the following signs if you suspect that a thermostatic mixing valve is malfunctioning, apart from extreme water temperatures:

As a result, it can become too cold or hot while you are showering. And truth be told, it is not a desirable state of affairs.

However, if you notice any change exceeding 2 degrees Celsius, the valve isn’t working and needs to be tested by professionals as soon as possible.

A backflow valve acts like a one-way gate for water and prevents potential contaminants from entering into potable water during a backflow event. There are two main types of backflows: back-pressure, when the pressure downstream is higher than upstream of the irrigation system, and back-siphon, when water is vacuumed back upstream due to a water main break or open fire hydrant. Though not very common, backflow events usually happen in homes connected to a municipal water source where a drop in pressure pulls water from irrigation tubing back into the system, contaminating it. Home water pressure should remain steady around 40-60 PSI. Any sudden changes can cause a backflow event.

No, both are entirely different items. Tempering valves are temperature-activated and adjustable, which means they alter hot water flow to ensure that the water is not too hot on reaching the tap. They mix cold and hot water systems to deliver it to your tap at the right temperature.