Why Is My Hot Water Cloudy?

Why Is My Hot Water Cloudy?

why is my hot water cloudy from the hot tap for Whywait PlumbingCloudy, hot water looks yuck.

Why is my hot water cloudy is one of those perennial questions that arise for the plumbing technicians at Whywait Plumbing?

Generally, the problem is based around reoccurring issues of, “what do you think causes cloudy (white not dirty) water that comes out of the kitchen tap when on hot. It doesn’t do it on cold, and if you boil cold, you don’t get the same residue. The photo attached is the residue after 30 seconds when the water settles.”

Very simply in most cases, cloudy, hot water is caused by dissolved gases in the water. We assure you it is safe to use.

To get cloudy water from your hot tap, you have to create the right set of circumstances for everything to come together at the same time.

So why is my hot water cloudy?

To explain this a little more, you have to understand that all your water is stored in your water pipes under pressure. Therefore water under pressure has a higher capacity to hold dissolved gases. When water under pressure is heated the ability to hold those dissolved gases is reduced.

Primarily what happens then that is your cold water is heated in a water heater it creates hot water under pressure. This results in supersaturation occurring with dissolved gases. Ultimately those gases are released when you turn on the hot kitchen tap.

Another way to look at it is that when you turn the hot tap on you create that same kind of effect as when you pop the cork off a bottle of champagne because all that pressure has to go somewhere.

Why hot water is cloudy when you first turn on a tap?

The reason your water is milky or cloudy when you first turn the water tap on is that turning on the tap releases the pressure. This pressure release is often an initial highly pressurised burst. Because the dissolved gas comes out of the water in the form of tiny gas bubbles right throughout the water filling a glass or container. The gas bubbles then rise to the surface of the water and burst so that the water has a cloudy or milky appearance.

The cloudy, hot water will clear in a few seconds. As it is gas bubbles dissolving the water will clear from the bottom up. You can easily observe in a glass the water rapidly clearing from the bottom up.

The good news is that dissolved gas or air in water in reasonable quantities is not uncommon and means that the water is in a “healthy” condition.

We guarantee cloudy water does not mean you have defective hot water service or your water is contaminated. Generally, gas bubbles in your hot water supply will increase with the increase in temperature of your water because of the hotter your water, the lower the number of gas bubbles that can be held.

What should I do if my hot water is always cloudy?

If after the initial burst of hot water, your water is continually cloudy then it needs further investigation. Gas bubbles do not cause the cloudiness that does not dissolve in hot water.

Seldom is it a fault with your hot water service. If the water does not lose the cloudiness within thirty seconds, you likely have a water filtration problem or a sediment buildup in the hot water tank.

Investigating cloudy, hot water needs to be undertaken by a licensed plumber so if you are continuously asking yourself why is my hot water cloudy you need to call us at Whywait Plumbing on (07) 5580 4311 and book a site visit.

 

 

 

Hot Water Burns Like Fire

Hot Water Burns Like Fire

Queensland law since 1995 has been that hot water delivered to bathrooms be regulated so that it does not exceed  50°C. The most common method to achieve this is by installing a tempering valve.

At 60°C, a severe burn can happen in 1 second.
At 55°C, a severe burn would take 10 seconds.
At 50°C, a severe burn would happen after 5 minutes.

tempering valve gold coastIf your hot water unit has a valve that looks like the one pictured on the right, then you have a tempering valve installed. The most common valve installed has a blue cap, but valves used on gas units frequently have a green cap and those on solar or heat pump units have an orange cap.

It is almost a guarantee that your valve has never been serviced as most homeowners do not realise they even had such a device or that they are required to be tested and certified annually. Very simply a tempering valve blends hot and cold water to deliver hot water at a constant temperature and thus reduces the risk of scalding accidents.

Recent litigation places a deed of care to ensure the safe delivery of hot water in domestic situations. Very simply this means you should be having the tempering valve serviced annually whether you are a homeowner or a property investor or a real estate property manager. To ensure your hot water delivery is safe, you need an annual report signed by a licensed plumber that states:

  1. the model, manufacturer and identification of the tempering valve installed
  2. the temperature of the hot water recorded during the test
  3. details of the test undertaken, details of what maintenance was undertaken and what parts were replaced
  4. the location of the valve in the property
  5. a reference to the test method undertaken being compliant with AS 4032.3, Appendix C

Duty of care provisions applies to us all and without an annual test and a written report you leave yourself liable if anyone suffers a burn from your hot water. Most electric hot water units heat water to 70°C, so that has the potential to produce a severe burn in 1 second without a correctly working tempering valve.

Whywait Plumbing is contacting clients to book in compliant testing, maintaining and reporting of your tempering valves but if you have any concerns over the temperature of your hot water, contact us now to schedule your service.

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