Effective Solutions for Pools: Tree Roots Blocking Pipes

Your pool area may be stunning, yet you could be experiencing ongoing drain backups nearby. In the Sutherland Shire and southern Sydney, our investigations frequently uncover invasive tree roots infiltrating older pipe joints. This is revealed when we utilise camera technology to inspect blocked sewer or stormwater lines adjacent to pools.

Addressing a blocked pool drain does not always necessitate the removal of pavers or extensive excavation of your garden. This article delves into the root causes of blockages, the methods we employ for detection, and how pipe relining presents a viable solution by rectifying the problem from within the pipe itself.

What Drainage Systems Are Present Beneath Your Backyard Pool?

In many Sydney backyard pools, the surrounding areas typically include paving, tiles, decking, retaining walls, and garden beds. Beneath this hardscape, you will generally find several crucial drainage lines:

• The household sewer line
• Stormwater drainage systems from the roof, paving, and pool surroundings
• The pool backwash line
• Overflow drains and subsoil drains

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

How Do Tree Roots Contribute to Blockages in Pool Drains?

Tree roots are naturally drawn to moisture, and even a minor leak at a pipe joint can lure them in. Roots from trees situated several metres away can extend towards a compromised joint in older terracotta, earthenware, or PVC pipes. Once a small root gains access, it flourishes in the moist environment of the pipe, trapping waste and debris, which ultimately culminates in a blockage.

When a drain near the pool experiences a blockage, backwash water has nowhere to go, potentially resulting in flooding on the pool deck. If the obstruction occurs within the sewer line, it can lead to backups in showers, toilets, and floor drains within the home.

If you are landscaping around a new pool, consult our guide on suitable tree species to plant to prevent blocked drains. This guide offers valuable insights on trees that are safer to position near pipework.

What Symptoms Indicate a Blocked Pool Drain or Stormwater Line?

Be vigilant for the following signs around your pool and inside 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 noises when the pool is being backwashed
• Water accumulates on the pavers or lawn adjacent to the pool

All these symptoms suggest a potentially blocked or damaged pipe underground, and a camera inspection can help us accurately identify the issue.

Why Is It Preferable to Avoid Excavation Around a Pool?

Accessing the drainage around a pool can be a complex task that often leads to damage. Reaching a pipe typically entails lifting travertine or granite pavers, cutting through concrete slabs or retaining walls, or removing garden beds, turf, or decking. Once the pipe is repaired, restoring the paving and landscaping can be both extensive and costly.

This is why we favour relining methods over excavation. In the example highlighted below, relining enabled 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 reached out to us regarding three significant problems 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 revealed extensive 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 illustrate the situation: the first depicts the blocked pipe before intervention, while the second shows the same pipe following the relining process.

Rather than suggesting 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 its full flow capacity, with no disruption to the pavers or garden beds. The entire procedure was completed in under six hours.

What Is the Procedure for Pipe Relining Without Excavation?

We utilise a method known as cured-in-place pipe relining. A resin-soaked liner is inserted into the damaged section of the pipe, pressed against the interior surface, and allowed to cure, effectively forming 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 aspect of the relining process, from the initial camera inspection to the final stages, without involving subcontractors. For more details on the procedure, please visit our pipe relining Sydney page.

When Is Pipe Relining Not Suitable for Pool Drain Repairs?

Pipe relining is ideal for pipes that are damaged yet maintain most of their shape. If a section has collapsed to the extent that a liner cannot be inserted, that segment will necessitate excavation and replacement. Similarly, if a section has sunk and lost its gradient, the liner will follow the dip, leading to stagnant water, which requires the reinstallation of the pipe at the correct slope.

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

Common Inquiries About Blocked Pool Drains

Can the Drain Pipes Surrounding a Pool Be Relined?

Indeed. We can reline the sewer and stormwater pipes located beneath pool surrounds, provided the pipe retains its shape. An initial camera inspection is conducted to assess the damage and confirm that a liner can be installed. If any sections have collapsed or sunk, those areas will need excavation and replacement.

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

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

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

Tree roots are a primary issue we encounter around pools, particularly in older terracotta and earthenware pipes. Roots infiltrate leaking joints 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 Accountable 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 reveals that the roots are within the Sydney Water main, the responsibility for repairs lies with Sydney Water, and we will provide the necessary footage for reporting.

How Long Does Pipe Relining Take Near a Pool?

The relining project in Sutherland Shire, mentioned earlier in this article, was completed in under six hours, which included 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

Our aim is to identify a method for repairing the drain from within the pipe before considering excavation. We will present you with the camera footage before commencing any work.

If you notice 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.