Your pool area may look spectacular, but persistent drain backups nearby can be a frustrating issue. In the Sutherland Shire and southern Sydney, our investigations using advanced camera technology in blocked sewer or stormwater lines adjacent to pools frequently reveal invasive tree roots that have breached the joints of older pipework.
Fortunately, resolving a blocked pool drain does not necessarily require lifting pavers or excavating your garden. This article explores the causes of blockages, the methods we employ for detection, and how pipe relining effectively addresses the problem from within the pipe itself.

What Types of Drainage Systems Are Present Beneath Your Backyard Pool?
In many backyard pools across Sydney, the surrounding area is often covered with paving, tiles, decking, retaining walls, and garden beds. Beneath this hardscape, you can typically find several drainage lines:
- The household sewer line
- Stormwater drainage systems from the roof, paving, and pool surroundings
- The pool backwash line
- Overflow and subsoil drains
It is essential to note 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 vulnerable to tree root intrusion.
How Do Tree Roots Cause Blockages in Pool Drains?
Tree roots naturally gravitate towards moisture sources, and even a tiny leak at a pipe joint can attract them. Roots from trees located several metres away can extend towards a cracked joint in older terracotta, earthenware, or PVC pipes. Once a small root penetrates, it thrives in the moist environment inside the pipe, capturing waste and debris, which ultimately leads to a blockage.
When a drain near the pool becomes blocked, backwash water has no escape, potentially causing flooding on the pool deck. If the blockage occurs within the sewer line, it can lead to backups in showers, toilets, and floor wastes inside the house.
If you are landscaping around a new pool, consider consulting our guide on suitable tree species to plant to prevent blocked drains. This guide offers valuable information on trees that are safer to place near pipework.
What Signs Indicate a Blocked Pool Drain or Stormwater Line?
Be vigilant for the following symptoms 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 during pool backwashing
- Water collects on the pavers or lawn adjacent to the pool
Each of these signs suggests a potentially blocked or damaged pipe underground, and a camera inspection will help us accurately identify the problem.

Why Is It Better to Avoid Excavation Around a Pool?
Accessing drainage around a pool can be a challenging task that often causes damage. Reaching 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 lengthy and expensive.
For this reason, we prefer relining methods over excavation. In the case described below, relining allowed us to work 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 major issues 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 significant root intrusion from a nearby tree, cracks in an old earthenware line, and several blocked junctions located approximately 3 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.
Instead of suggesting excavation, we took the following steps:
- We cleared the line using high-pressure hydro jetting and root-cutting tools.
- We installed a resin liner throughout the damaged section to seal the cracked junctions and joints.
The stormwater line was restored to its optimum flow, with no disruption to the pavers or garden beds. The entire process was completed in under six hours.
What Is the Process for Pipe Relining Without Excavation?
We utilise a technique called 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 process 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 manages every stage of the relining process, from the initial camera inspection to the final stages, without subcontractors. For more information on the procedure, please visit our pipe relining Sydney page.
When Is Pipe Relining Not Suitable for Pool Drain Repairs?
Pipe relining works well for pipes that are damaged yet retain most of their shape. If a section has collapsed to the point where a liner cannot be inserted, that segment will need excavation and replacement. Similarly, if a section has settled and lost its gradient, the liner will follow the dip, resulting in stagnant water, which requires reinstallation of the pipe at the correct slope.
Sometimes, our camera inspections reveal that roots have penetrated the Sydney Water main rather than your private pipes. In these cases, the responsibility for repairs lies with Sydney Water, and we 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 beneath pool surrounds, provided the pipe maintains its shape. A camera inspection is conducted first to assess the damage and ensure that a liner can be installed. If any sections have collapsed or sunk, those areas will need excavation and replacement.
What Techniques Are Used to Resolve a Blocked Pool Drain Without Excavation?
We tackle blockages using high-pressure hydro jetting and root-cutting tools. Following this, we inspect the pipe with a CCTV camera. If the camera detects 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 Causes Contribute to Blocked Drains Around Pools in Sydney?
Tree roots are a primary cause we encounter near 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 reveals that the roots are within the Sydney Water main, the responsibility for repairs falls to 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 in this article, was completed in under six hours, including root clearing and 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.
Book 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, and we will show you the camera footage prior to 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.
Original Article First Published At: When Tree Roots Block Pipes Around Your Pool — And How to Fix It Without Digging Up Your Garden
The Article: Tree Roots Blocking Pipes Around Your Pool: Fixing Without Digging first appeared on https://writebuff.com
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