Tree Roots Blocking Pipes: Solutions for Pool Challenges

Your pool area may be visually stunning, yet you might be contending with ongoing drain backups nearby. In the Sutherland Shire and southern Sydney, our investigations frequently uncover invasive tree roots breaching older pipe joints when we deploy 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 the extensive excavation of your garden. This article delves into the root causes of blockages, the methods we utilise for their detection, and how pipe relining serves as a practical resolution by rectifying the issue from within the pipe itself.

Which Drainage Systems Are Situated Beneath Your Backyard Pool?

In numerous backyard pools across Sydney, the surrounding landscape typically incorporates paving, tiles, decking, retaining walls, and garden beds. Beneath this hardscape, you will generally find several critical 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 crucial to understand that the pool’s filtration pipework, which connects the pump, filter, skimmer box, and return jets, operates under pressure and remains distinct from the drainage systems. This discussion will focus on the drainage lines, which are particularly susceptible to tree root infiltration.

In What Ways Do Tree Roots Lead to Blockages in Pool Drains?

Tree roots instinctively seek moisture, and even a minor leak at a pipe joint can draw 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 infiltrates, it flourishes in the moist environment of the pipe, capturing waste and debris, which ultimately culminates in a blockage.

When a drain near the pool becomes obstructed, backwash water can no longer exit, potentially resulting in flooding on the pool deck. If the blockage occurs within the sewer line, it can cause backups in showers, toilets, and floor drains within the home.

For those landscaping around a new pool, we recommend consulting our guide on suitable tree species to plant to avert blocked drains. This guide offers valuable insights into 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 emits gurgling noises when the pool is being backwashed
• Water pools on the pavers or lawn adjacent to the pool

Each of these symptoms indicates a potentially blocked or damaged pipe underground, and a camera inspection can accurately identify the issue.

Why Is It Preferable to Avoid Excavation Around a Pool?

Gaining access to the drainage around a pool can be a daunting task that often leads to damage. Accessing a pipe typically requires lifting travertine or granite pavers, cutting through concrete slabs or retaining walls, or removing garden beds, turf, or decking. After repairing the pipe, restoring the paving and landscaping can be extensive and expensive.

For this reason, 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 contacted us regarding three significant concerns in their backyard:

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

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

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

Rather than suggesting excavation, we took 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 successfully restored to its optimal flow, with no disruption to the pavers or garden beds. The entire process was accomplished in under six hours.

What Does the Pipe Relining Process Entail Without Excavation?

We employ a technique known as cured-in-place pipe relining. A resin-soaked liner is introduced into the compromised section of the pipe, pressed against the interior surface, and allowed to cure, effectively creating a new pipe within the old one. This method 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 through to the final stages, without subcontractors. For further details on the procedure, please visit our pipe relining Sydney page.

When Is Pipe Relining Not an Appropriate Solution for Pool Drain Repairs?

Pipe relining is suitable 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, resulting in stagnant water, which requires the reinstallation of the pipe at the correct slope.

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

Common Questions Regarding Blocked Pool Drains

Can the Drain Pipes Surrounding a Pool Be Relined?

Certainly. We can reline the sewer and stormwater pipes situated 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 require excavation and replacement.

What Methods Are Utilised 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 necessitating the lifting of pavers, cutting of slabs, or disturbance of the garden.

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

Tree roots are a primary cause we encounter around pools, especially in older terracotta and earthenware pipes. Roots infiltrate leaking joints and continue to grow until they ensnare 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 supply the necessary footage for reporting.

How Long Does Pipe Relining Take Near a Pool?

The relining project in Sutherland Shire, mentioned earlier, 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 objective is to identify a method for repairing the drain from within the pipe before considering excavation, and we will share the camera footage with you 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.