Tree Roots Blocking Pipes: Effective Pool Area Solutions

Your pool area may look magnificent, but frequent drain backups could be causing you distress. Within the Sutherland Shire and southern Sydney, our advanced camera technology investigations of blocked sewer or stormwater lines near pools frequently reveal invasive tree roots infiltrating the joints of older pipe systems.

Resolving a blocked pool drain doesn’t always require lifting pavers or excavating your garden. This article explores the causes of blockages, the techniques we employ to identify them, and how pipe relining offers a practical solution by repairing the issue internally within the pipe.

What Drainage Systems Lie Beneath Your Backyard Pool?

In many Sydney backyard pools, the surrounding area is usually furnished with paving, tiles, decking, retaining walls, and garden beds. Beneath this hardscape, you can typically find several drainage lines:

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

It is essential to distinguish the pool’s filtration pipework, which connects the pump, filter, skimmer box, and return jets, from the drainage systems. This discussion focuses on the drainage lines, which are particularly vulnerable to tree root intrusion.

How Do Tree Roots Cause Blockages in Pool Drains?

Tree roots are naturally attracted to moisture sources, and even a slight leak at a pipe joint can entice them. Roots from trees located several metres away can extend towards a damaged joint in older terracotta, earthenware, or PVC pipes. Once a small root gains access, it flourishes in the moist environment inside the pipe, trapping waste and debris, which eventually leads to a blockage.

When a drain near the pool becomes blocked, backwash water has nowhere to go, potentially causing flooding on the pool deck. If the blockage occurs in the sewer line, it can result in backflow in showers, toilets, and floor drains within the house.

If you are landscaping around a new pool, consider consulting our guide on tree species that are safer to plant near pipes to avoid blocked drains. This guide offers vital information on trees that have minimal risk of causing issues with your drainage systems.

What Signs Indicate a Blocked Pool Drain or Stormwater Line?

Be vigilant for the following indicators 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 emits gurgling sounds when the pool is being backwashed
• Water pools on the pavers or lawn adjacent to the pool

Each of these signs points to a potentially blocked or damaged pipe underground, and a camera inspection will help us accurately locate the problem.

Why Is Excavation Around a Pool Best Avoided?

Accessing the drainage system around a pool can be an overwhelming task that often results in damage. Typically, reaching a pipe involves lifting travertine or granite pavers, cutting through concrete slabs or retaining walls, or removing garden beds, turf, or decking. After repairing the pipe, the restoration of paving and landscaping can be extensive and expensive.

For this reason, 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: Successful 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 emanating from the back garden
• Water pooling in a tiled corner

Our CCTV drain inspection revealed substantial root intrusion from a nearby tree, cracks in an old earthenware line, and multiple blocked junctions situated roughly 3 metres beneath the pavers.

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

Instead of recommending excavation, we implemented 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 under six hours.

How Does Pipe Relining Work Without Excavation?

We employ a technique 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 left to cure, effectively creating a new pipe within the old one. This procedure 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 further details about the procedure, please visit our pipe relining Sydney page.

When Is Pipe Relining Not Suitable for Pool Drain Repairs?

Pipe relining is effective for pipes that are damaged but still maintain most of their shape. If a section has collapsed to a degree that a liner cannot be inserted, that segment will require excavation and replacement. If a section has sunk and lost its gradient, the liner will follow the dip, leading to stagnant water, necessitating 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 will provide the footage necessary to facilitate the reporting process.

Frequently Asked Questions About Blocked Pool Drains

Can the Drain Pipes Surrounding a Pool Be Relined?

Absolutely. We can reline the sewer and stormwater pipes located beneath pool surrounds, provided the pipe retains its shape. A camera inspection is conducted first to assess 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 Techniques Are Employed to Clear a Blocked Pool Drain Without Excavation?

We eliminate blockages using high-pressure hydro jetting and root-cutting tools. After this, we inspect the pipe with a CCTV camera. If the camera identifies cracked joints or root entry points, a resin liner can be installed 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 Issues Lead to Blocked Drains Around Pools in Sydney?

Tree roots are a major contributor to blockages we encounter around pools, particularly in older terracotta and earthenware pipes. Roots infiltrate joints that leak water and continue to grow until they trap debris. A camera inspection will help pinpoint 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 remove tree roots that invade the junction at the connection point. If our camera footage shows 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, encompassing root clearing and lining of the damaged section. The duration for your drain will vary based on the length of the damaged area, the number of joints that require sealing, and the accessibility of the entry point. We will provide you with a timeline following the camera inspection.

Schedule a CCTV Inspection for Your Blocked Drain Near the Pool

Our goal is to determine a method for repairing the drain from within the pipe before considering excavation. We will share the camera footage with you prior to commencing any work.

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