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Understanding the Plumbing System in Your Marrickville Home

As homeowners, being acquainted with the basics can help in performing simple maintenance tasks, identifying potential problems, and knowing when it’s time to call a professional like Plumbwell Plumbing Services. This comprehensive guide is designed to give you insights into the essentials of your Marrickville home’s plumbing system.

Basics of Home Plumbing Systems

Home plumbing systems may seem complex, but they essentially consist of two parts: the water supply system and the drain-water vent system.

The Two-Part Plumbing System

This system works to bring clean water into your home and remove the wastewater. They are separate to ensure there’s no cross-contamination, maintaining the integrity and safety of the water supply.

  • Water Supply System: the water supply system works under pressure to deliver cold and hot water to your home.
  • Water Meter: located outside the house, the water meter records your water usage for billing purposes. The shut-off valve is typically found close to it, a crucial element when needing to stop the water flow for plumbing repairs or emergencies.
  • Main Water Shut-off Valve: the main water shut-off valve is a homeowner’s best friend during a plumbing crisis. Turning it off halts water flow to the entire house, preventing further damage during leaks or pipe bursts.
  • Supply Pipes: supply pipes direct water from the main valve to the fixtures in your house. They are typically made of copper, PVC, or PEX, each having their unique properties and uses.

Drain-Water Vent System

The drain-water vent system, also known as the DWV system, ensures the smooth exit of waste and sewage from your home.

  • Drain Pipes: drain pipes carry wastewater from your home’s fixtures to the sewer or septic system. They work using gravity, sloping downwards away from your house.
  • Vent Pipes: vent pipes prevent sewer gases from entering the home, while also maintaining proper atmospheric pressure in the drain pipes for efficient drainage.
  • Trap Pipes: these curved pipes under sinks and drains “trap” a small amount of water after use, forming a seal to stop sewer gases from entering the home.

Key Components of Your Marrickville Home’s Plumbing System

Several key components work together to form your Marrickville home’s plumbing system.

Pipes and Fittings

Pipes and fittings are essential components of your plumbing system. Understanding them can aid in troubleshooting issues when they arise. Different types of pipes are used in homes, with modern ones often utilising PVC or PEX for water supply lines and PVC for drain pipes. Older homes may have copper or galvanised steel pipes, which can corrode over time. Fittings play a crucial role in connecting pipes and facilitating changes in flow direction and pipe size. They include elbows, tees, couplings, and valves.


Fixtures serve as the endpoints of your plumbing system, providing access to the water supply and serving as entry points to the drainage system. Sinks and faucets require both supply connections for hot and cold water and drain connections. Toilets have a more complex setup, including the supply, bowl, tank, and siphoning action for flushing. Showers and tubs feature hot and cold water supply lines and a drain connection, with water flow controlled by showerheads, faucets, or water diverters.

Water Heater

The water heater is responsible for supplying hot water to your fixtures, making it a vital component of your plumbing system. There are two main types of water heaters: tankless and storage tank heaters. The choice between them depends on factors such as hot water demand, budget, and energy efficiency preferences. Performing routine maintenance, such as annual tank draining, can extend the lifespan of your water heater and maintain its efficiency.


Vents in plumbing systems are crucial for maintaining proper pressure in drain pipes and preventing the entry of sewer gases into your home. Proper venting prevents water locks and ensures efficient drainage. Vents are typically located on the roof, and regular maintenance, including keeping them clear of blockages like leaves or nests, is essential for their effective operation.

Common Plumbing Issues in Marrickville Homes

Plumbing issues can range from minor inconveniences to major problems that require immediate attention. Here, we will explore some common problems Marrickville homeowners encounter.

Blocked Drains

Blocked drains are a frequent and frustrating plumbing issue faced by many homeowners. The accumulation of fat, food waste, hair, soap, and other foreign objects in the drains can cause blockages in Marrickville homes. To prevent blockages, it is important to dispose of waste properly and consider using drain cleaners regularly to maintain free-flowing drains. In cases of stubborn blockages, professional drain cleaning services, such as those offered by Plumbwell Plumbing Services, may be necessary for effective resolution.

Leaky Pipes and Faucets

Leaky pipes and faucets not only waste water but can also cause structural damage if left unaddressed. To detect leaks, keep an eye out for damp patches on walls, floors, or ceilings, unusually high water bills, and the sound of dripping or running water. Leaks can be caused by factors such as corrosion, age, and excessive water pressure. While minor faucet leaks can be fixed by homeowners, it is recommended to seek the assistance of a professional plumber for significant leaks to ensure proper resolution.

Hot Water Heater Problems

Hot water heater issues can disrupt your comfort and daily routines. Common problems include inadequate hot water, excessively hot water, leaks, and noisy operation. Regular maintenance, such as checking the pressure valve and flushing the tank annually, can help prevent these issues. If problems persist, it is advisable to contact a professional plumber specialising in hot water heater repair in Marrickville to ensure proper diagnosis and resolution.

Basic Maintenance for Your Plumbing System

Ensure the longevity and functionality of your plumbing system by conducting regular inspections for signs of trouble and practising safe usage habits such as avoiding overloading the garbage disposal and refraining from pouring grease down drains. These simple maintenance tasks can prevent major issues and keep your plumbing system in optimal condition.

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