Plumber FAQs

Plumber FAQs


Excellent plumber FAQs are hard to come by. Plumbing is something that you need to keep a close eye on in your home. Generally, most people only notice how important their plumbing is to their home and daily lives when something goes wrong. With the internet available, many people look up answers on what to do when their plumbing does not work. For that reason, we have written this FAQ section to help you out. If all else fails and you cannot fix the problem yourself, then give us a call.

Plumbing Sydney


What causes the water temperature to fluctuate in the shower or bath when the toilet is flushed or someone runs another water appliance in the house?

Change in Water Temperature

A change in water temperature is annoying. When you flush the toilet, the tank starts refilling by opening an inlet valve. Some water rushes through the opened valve and is diverted away from the shower. Depending on how the piping is done and how wide the valve opens, more or less water is diverted away form the shower and the effect is more or less noticeable. This causes a change in water temperature

Water temperature

What is a pressure-balancing valve and why should it be installed on my shower systems?

Pressure Balancing Valve

Pressure balancing valves prevent sudden change in water temperatures. It is happens to everyone who showers (which is hopefully you!!). Elsewhere in the house a toilet is flushed, a faucet is opened, or the washing machine is turned on, and the once-temperate water coming from the showerhead is suddenly cold enough to make you jump or so hot you want to scream OUCH!. A simple device called a pressure-balancing shower valve can help you with this.

What would cause a water leak from the vent in your plumbing system?


Water should not be able to leak from your vent system. The only water that should be in your vent system should be the occasional storm water after a huge storm. There should be no way for sewage or dirty sewage water to get into your vents or water system.



What could contribute to a high water bill other than a pipe leaks?

High Water Bill

Almost ninety percent or more of all leaks in residential plumbing systems are found in the toilet tank. Toilet tank leaks usually are the result from worn parts or improper alignment of some part of the flushing mechanism. It is important to stop the leak happening to conserve water.

What makes my plumbing & drain pipes rattle constantly?

Drain & Plumbing Rattle

This problem is usually caused by the water lines not being properly isolated and fixed. It can be easily fixed if your water lines are easily accessible for a plumber.

What is causing my hot water to smell like rotten eggs? My cold water doesn’t smell, how can I fix this?

Hot Water Smell

The most common and general cause of “smelly water” is a non-toxic sulfate reducing bacteria, scientifically known as Divibrio Sulfurcan. It often enters the water system through construction or a break in ground piping. The easiest and most affordable treatment available is the shock-chlorination of the system. This is a surface treatment, and mostly requires repeated trials in heavily infected water systems.

My toilet managed to empty itself of water. Why does this occur?

Toilet Empties Itself of Water

Their are a few answers to this question, but this solution fixes it almost all of the time.

Very poor venting or no venting of the toilet fixture. Vents allow for airflow to the toilet and sewage system. Without the vent, air pockets form in the waste branches, which cause what is known as back-siphonage. The air in the system, without a vent, can only escape through the sewer and drags the water in the trap down with it.


Why does my toilet fill up with hot water instead of room temperature water?

Toilet Filling With Hot Water

One of the main reasons you may have hot water in your toilet is due to a bad flapper in the toilet tank or a bad fill valve. This can allow the water to seep into the toilet tank. When you have a mixing valve on your toilet to stop condensation from occurring, some hot water is introduced into the cold water line to warm the water just a little, but when the water just seeps a little at a time the hot water dominates the cold and you get a toilet tank of hot water.

How do I prevent water in the toilet tank from over flowing?

Toilet Tank Overflowing

This usually happens because the fill valve in the tank has a leak in it. Also, if the fill valve has been recently repaired or replaced, it is possible that it has been set too high by your plumber. If the fill valve is old, replace it right awat. By replacing it your problem should be solved quickly.

Why has my hot water system stopped working as well as it used to?

Hot Water System Not Working

Usually this occurs because of a sediment build up in your tank. As hot water systems get older, they accumulate sediment and lime deposits. If these deposits are not removed periodically, the sediment will create a wall barrier between the burner and the water, greatly reducing the hot water systems performance level. The result is an increase in the amount of energy required to deliver hot water to the tap.

Why would a hot water system run out of hot water faster than normal?

Hot Water System Running Out of Water

If your water system is running cold easily or frequently then several things could be occurring. Firstly, check the shower head volume to ensure it is not too quick. A new shower head should put out about 2.5 gallons of water a minute. Some older heads put out about 5 gallons of water a minute. Working with the shower head can double shower length. In some cases, the dip tube on the cold-water inlet has broken or is worn out.