Effective Solutions for Pools: Tree Roots Blocking Pipes

Your pool area may exude elegance, yet you might be confronting persistent drainage issues nearby. In the Sutherland Shire and southern Sydney, our investigations using advanced camera technology in blocked sewer or stormwater lines adjacent to pools frequently uncover invasive tree roots that have infiltrated the joints of ageing pipework.

Resolving a blocked pool drain does not always necessitate the lifting of pavers or extensive excavation of your garden. This article delves into the causes of blockages, the methods we utilise to identify them, and how pipe relining provides a durable solution by addressing the issue from within the pipe itself.

Which Drainage Systems Are Present Underneath Your Backyard Pool?

In many Sydney backyard pools, the surrounding area is typically enhanced with paving, tiles, decking, retaining walls, and garden beds. Underneath this hardscape, you are likely to discover several drainage lines:

• The sewer line linked to the household
• Stormwater drainage systems originating from the roof, paving, and pool area
• The pool backwash line
• Overflow drains and subsoil drains

It is crucial to understand that the pool’s filtration pipework, which connects the pump, filter, skimmer box, and return jets, operates under pressure and is distinct from the drainage systems. This discussion centres on the drainage lines, which are particularly vulnerable to tree root intrusion.

In What Ways Do Tree Roots Cause Blockages in Pool Drains?

Tree roots are instinctively drawn to sources of moisture, and even a minor leak at a pipe joint can entice them. Roots from trees positioned several metres away can extend towards a fractured joint in older terracotta, earthenware, or PVC pipes. Once a small root infiltrates, it thrives in the moist environment within the pipe, capturing waste and debris, which ultimately leads to a blockage.

When a drain near the pool becomes obstructed, the backwash water lacks an escape route, potentially resulting in flooding on the pool deck. If the blockage occurs within the sewer line, it can cause showers, toilets, and floor wastes inside the house to back up.

If you are landscaping around a new pool, we recommend consulting our guide on suitable tree species to plant in order to prevent blocked drains. This guide outlines trees that are safer to position near pipework.

What Symptoms Indicate a Blocked Pool Drain or Stormwater Line?

Stay alert for the following signs around your pool and within your home:

• Pool water drains slowly or backs up during backwashing
• The backwash line overflows
• Water bubbles up through a garden drain or grate
• A sink or shower produces gurgling sounds when the pool is backwashed
• Water accumulates on the pavers or lawn adjacent to the pool

Each of these indicators suggests a potentially blocked or damaged pipe underground, and a camera inspection will help us accurately identify the issue.

Why Is It Crucial to Avoid Excavation Around a Pool?

Accessing the drainage around a pool can be a challenging task that often results in significant damage. Gaining access to a pipe typically requires lifting travertine or granite pavers, cutting through concrete slabs or retaining walls, or removing garden beds, turf, or decking. Following the pipe repair, restoring the paving and landscaping can be extensive and costly.

This is why we prefer relining methods over excavation. In the case highlighted below, relining allowed us to navigate around steep stairs and an established garden without causing disruption.

Case Study: Effective Pipe Relining Solutions Near a Pool in Sutherland Shire

A homeowner in the Sutherland Shire approached us regarding three significant concerns in their backyard:

• A blocked stormwater line adjacent to their in-ground pool
• Gurgling noises emanating from the back garden
• Water pooling in a tiled corner

Our CCTV drain inspection uncovered substantial root intrusion from a nearby tree, cracks in an old earthenware line, and multiple blocked junctions located approximately three metres beneath the pavers.

The accompanying images depict the situation: the first illustrates the blocked pipe before intervention, while the second shows the same pipe after the relining process.

Rather than recommending excavation, we undertook the following steps:

1. We cleared the line using high-pressure hydro jetting and root-cutting tools.
2. We installed a resin liner throughout the damaged section to seal the cracked junctions and joints.

The stormwater line was restored to optimal flow, with no disruption to the pavers or garden beds. The entire process was completed in less than six hours.

What Steps Are Involved in Pipe Relining Without Excavation?

We utilise a method known as cured-in-place pipe relining. A resin-soaked liner is introduced into the damaged section of the pipe, pressed against the internal surface, and allowed to cure, effectively creating a new pipe within the old one. This technique seals any cracks, leaking joints, and entry points exploited by tree roots. We access the pipe through an existing entry point, such as an inspection opening, ensuring that the surrounding pavers and garden remain undisturbed.

Our dedicated team oversees every stage of the relining process, from the initial camera inspection to the final stages, without involving subcontractors. For more information about the procedure, please visit our pipe relining Sydney page.

In Which Instances Is Pipe Relining Not Appropriate for Pool Drain Repairs?

Pipe relining is suitable for pipes that are damaged but retain most of their shape. If a section has collapsed to such an extent that a liner cannot be inserted, that portion will require excavation and replacement. Similarly, if a section has sunk and lost its gradient, the liner will follow the dip, leading to stagnant water, which necessitates the reinstallation of the pipe at the correct slope.

Occasionally, our camera inspections reveal that roots have infiltrated the Sydney Water main rather than your private pipes. In such instances, the responsibility for repairs lies with Sydney Water, and we provide the footage necessary to facilitate the reporting process.

Common Questions About Blocked Pool Drains

Can the Drain Pipes Surrounding a Pool Be Relined?

Certainly. We can reline the sewer and stormwater pipes located beneath pool surrounds, provided the pipe maintains its shape. A camera inspection is conducted first to evaluate the damage and confirm that a liner can be installed. If any sections have collapsed or sunk, those areas will need to be excavated and replaced.

What Methods Are Used to Clear a Blocked Pool Drain Without Excavation?

We eliminate the blockage using high-pressure hydro jetting and root-cutting tools. Following this, we inspect the pipe using a CCTV camera. If the camera identifies cracked joints or root intrusion points, we can install a resin liner from within the pipe through an existing access point. This repair effectively seals the damage without needing to lift pavers, cut slabs, or disturb the garden.

What Common Issues Lead to Blocked Drains Around Pools in Sydney?

Tree roots are a primary concern around pools, particularly in older terracotta and earthenware pipes. Roots penetrate joints that leak water and continue to grow until they trap debris. A camera inspection will help identify the specific cause of the blockage in your drain.

Who Is Responsible for Removing Tree Roots from a Sewer Pipe in Sydney?

The property owner is responsible for their own pipes. According to Sydney Water’s guidelines regarding repair responsibilities, the owner must also clear tree roots that invade the junction at the connection point. If our camera footage indicates that the roots are within the Sydney Water main, the responsibility for repairs lies with Sydney Water, and we will provide the necessary footage to report it.

How Long Does Pipe Relining Take Near a Pool?

The relining project in Sutherland Shire mentioned in this article was completed in under six hours, including root clearing and the lining of the damaged section. The duration for your drain will depend on the length of the damaged area, the number of joints requiring sealing, and the accessibility of the entry point. We will provide you with a timeline following the camera inspection.

Arrange a CCTV Inspection for Your Blocked Drain Near the Pool

We strive to identify a method for repairing the drain from within the pipe before considering excavation, and we will present the camera footage before commencing any work.

If you observe signs of a blocked drain near your pool, schedule a CCTV inspection or contact The Blocked Drain Guys at 0418 408 333. Craig or one of our team members will explain the inspection process and what we will be looking for.