Like the water metre valve, plumbers may leave the shut-off valve partially closed after fixing any issue. So, whenever your water pressure drops after repair work, know that the problem lies with the metre or shut-off valve.

Boiler pressure relief valvelocation

In this guide, we have shortlisted the main reasons for low water pressure, pointing out the quickly solvable issues from those that require professional help.

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Recently my boiler is leaking periodically through the pressure relief valve. I replaced with a new pressure relief valve. Still leaking so I hired a plumber he said my expansion tank is filled with water and it’s most likely the issue. I paid and had the expansion tank changed. Few hours later, it leaks again and now the condensate pipe has a small leak too. Every time it leaks, I noticed the pressure reading is very high up to 40 psi. I am completely lost now. What’s going on with my boiler? My plumber stated if the issue is not fixed, next will be changing the backflow preventer which will cost me about 500. I just want to know if this makes sense. I tried to research on the Internet finding relevant information, but couldn’t find the connection between backflow preventer and high pressure water leak.

Having a hot water system that works is one of life’s little luxuries. It is so important to be able to provide heated water for your business and home.

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Remember when we mentioned that there are two shut-off valves in a home? You already know about one, but the other valve controls the water supply into your house. It manages the water flow from the city pipeline and extends through your home’s foundation walls.

Australians face similar issues when switching homes, especially when they move into an old property with steel pipes. In such instances, the corrosion has already set in, and only a few weeks of heavy use can render the pipes useless.

The best way to fix leaking pipes is to reline the system using a no-dig pipe relining method, reducing rusting in the future.

But if the water pressure is low, there’s a chance that the metre valve is only partially open, which usually happens when plumbing work has been done recently. The plumbers might have forgotten to open the valve, reducing water pressure.

Pressure Relief Valve- bunnings

A prolonged blockage can lead to burst pipes and flooding, requiring more manual labour and plumbing fixtures costs. So, make sure you clean fixtures and fittings and your drains.

WattsPressure ReliefValve, 30 psi

You can know when your neighbours are facing similar problems, so call the supplier and clarify when they can restore the regular supply.

If the regulator is faulty, it may be allowing water to continue to flow slowly into your boiler, raising the boiler pressure until it reaches 30-40 psi. At that point, the pressure relief valve would start dripping.

Pressure relief valvehot water system

You may not know, but the plumbing system has a pressure regulator, also known as a pressure-reducing valve, which could affect the water pressure. It’s no rocket science that a broken pressure regulator will fail to control the input pressure of the plumbing system and reduce it to a safe level. To get an accurate reading of the water pressure in your house, test the pressure by attaching a water pressure gauge to the outdoor hose spigot closest to the water main or pressure regulator.

Struggling with low water pressure in one or more parts of your plumbing system at home? Check out our extensive guide on how to tackle this problem effectively and find out what might be causing it.

After years of neglecting the water pipes, debris build-up may clog the pipe opening, affecting the water supply and reducing the pressure. Anything from sand, grease or solid items like food particles and foreign objects can block the pipes, making regular maintenance of the plumbing systems essential.

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You can tell if the valve is open by looking at the metal handle and whether it’s parallel to the water pipe. Because if it’s at an angle, you’ll have to use a wrench to open it.

Airpressure relief Valve

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It gets to a point when the corrosion closes the pipe opening, leaving you with no option but an expensive renovation project. However, it takes years for the corrosion to set in and deteriorate the pipes, meaning that the drop in water pressure is gradual. Most homeowners fail to realise something’s wrong until it’s too late.

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You should ensure this valve is open; turn the wheel-like handle counterclockwise to increase the water flow if it’s a gate valve. You’ll need to adjust the lever position for a ball valve and ensure it’s not at an angle but parallel to the pipeline.

You may have a defective boiler feed water pressure regulator. (Looks like this.) This device takes water from your plumbing system and feeds it into the boiler until the pressure in the boiler reaches a certain level, typically 12 PSI. Then it stops adding water unless the pressure again drops below 12 PSI for any reason, such as a leak or the intentionally draining of some water. When the boiler heats up, expansion takes place and the water pressure rises a bit above 12 PSI. This excess pressure is absorbed by the expansion tank so the final pressure of the hot boiler may go up to 15-20 PSI typically, which is below the usual 30 PSI setpoint of the pressure relief valve.

At Fixed Today, our Sydney plumbers are highly experienced and can quickly detect the cause of no water pressure, providing you with a cost-effective and permanent solution. Call us today for more information or to book an appointment.

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BFP can be very small inlets, f.e. of the size of a coin that fits into pump/tube connections, i.e. it is not always visible from outside, if/where a BFP is installed:

The water metre valve is one of the first to check if water is trickling from the tap. Depending on your plumbing system, you can find two shut-off valves in your water meter valve, among which the first is the water metre valve.

WaterPressure Relief Valve

People often have galvanised steel pipes installed into their plumbing system, but over time, they wear out to the point of no return. When galvanised pipes get corroded, water pressure can be reduced, restricting water flow. Moreover, the corrosion attacks the pipe on the insides, so you can’t spot the damage from the outside.

ReecePressure Relief Valve

If that hole is blocked, the pressure can not be compensated by the expansion tank but must be released by the pressure relief valve.

A couple of factors are always in play whenever you have low hot water pressure. Check our blog for reasons and simple fixes for your hot water system.

We recommend checking the metre box, which you can find on the outside wall of your home in a warm climate. It can also be in the garage, basement, or underground between the street and your property.

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A problem I had (twice) with a boiler, was a pin-hole leak in the coil for the domestic HW supply. It let curb pressure cold water into the boiler which exceeded the relief valve. Eventually had to buy a better quality coil for the water type. A diagnostic would be be shut off that water feed and see if the problem abates.

Not all homes have a pressure regulator, but properties may experience a sudden spike or fall in water pressure supply when they have a malfunctioning pressure regulator. The silver lining is that you can instantly tell a failing pressure regulator, as it impacts the water supply throughout the house.

Somehow, you leave the shower on tippy-toes to avoid falling over and call your water supplier to give them an earful. But if the problem doesn’t lie at their end, you might have more severe plumbing issues.

A hot water recirculation pump is a device that cuts wait times for hot water down from minutes to a few seconds.

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Boiler pressure relief valvereplacement

People sharing pipelines can lead to low water pressure more often than not. For instance, when your neighbour is taking a shower or washing the car, does it affect the water pressure in your home?

It would be best to contact your water supplier when you’ve tried all the above methods but can’t find the reason for low water pressure. Sometimes, the supplier might have issues maintaining steady pressure, affecting the supply in your home.

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Some regulators include a backflow preventer and some use a separate backflow preventer that is installed between the regulator and the boiler. The backflow preventer prevents boiler water from backing up into your household plumbing and potentially poisoning you.

Drainage issues are not limited to private properties. These problems occurring in a commercial space can be a lot more cumbersome and harder to manage.

The line between the expansion tank and boiler should not be blocked by a normal backflow preventer (BFP). But some BFP are made for that location since they do have a tiny hole which is allowing a tiny back flow during heating up.

After testing the pressure with a pressure gauge, they will shut off the water supply using the water metre valve. It’s easy to attach the pressure gauge to the fixture closest to the regulator or main supply line to get a reading. Usually, the average pressure is around 75 pounds per square inch, but it may vary depending on your locality.

Your plumber may be planning to replace the feed water regulator and the backflow preventer at the same time, which should solve the problem. Or you could tackle this yourself if you're able.

DIYers can often replace the regulators themselves, provided the replacement is from the same brand and has compatible fittings. But if you’re unsure, call a professional plumber.

Are you facing issues with low water pressure but don’t know where the problem lies? Our guide highlights the common reasons for a drop in water pressure.

This happens when the water supply is divided between multiple homes, and if it’s leaving you irritated, contact a professional plumber for pipe replacement. This will permanently fix the problem if you’re willing to bear the cost of renovations.

It’s beside the main supply pipe, providing water from the city to your home. In most cases, people have no use for the water metre valve since it’s the property of your respective water company and is operated by professionals.

As you can see, not all these are serious plumbing issues, and, in some instances, it’s pretty easy to open the valve or check the water pressure yourself. You’ll have to contact a plumbing company for more critical problems since they have the equipment to free up the clog or replace the pipes without causing property damage.

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