Your pool area may look beautiful, but frequent drainage backups can be a significant concern. In the Sutherland Shire and southern Sydney, our investigations with camera technology in blocked sewer or stormwater lines near pools frequently reveal invasive tree roots that have encroached upon the joints of older pipework.
Resolving a blocked pool drain doesn’t necessarily mean you have to lift pavers or excavate your garden. This article explores the underlying causes of blockages, the techniques we employ to detect them, and how pipe relining presents a reliable solution by addressing the problem from within the pipe itself.
What Types of Drainage Systems Exist Underneath Your Backyard Pool?
In many Sydney backyard pools, the surrounding area is often paved, tiled, or decked, with retaining walls and garden beds. Beneath this hardscape, several drainage lines are typically present:
- The sewer line from the household
- Stormwater drainage systems from the roof, paving, and pool surroundings
- The pool backwash line
- Overflow drains and subsoil drains
It’s essential to note that the pool’s filtration pipework connects the pump, filter, skimmer box, and return jets, operating 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 are attracted to moisture sources, and even a small leak at a pipe joint can draw them in. Roots from trees several metres away can reach out towards a cracked joint in older terracotta, earthenware, or PVC pipes. Once a small root enters the pipe, it flourishes in the damp environment, trapping waste and debris, which eventually leads to a blockage.
When a drain near the pool becomes blocked, the backwash water has nowhere to go, which can result 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, consider consulting our guide on suitable tree species to prevent blocked drains. This guide outlines trees that are safer to plant near pipework.
What Signs Indicate a Blocked Pool Drain or Stormwater Line?
Be vigilant for the following indicators 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 makes gurgling sounds when the pool is being backwashed
- Water pools on the pavers or lawn adjacent to the pool
Each of these symptoms suggests a potentially blocked or damaged pipe underground, and a camera inspection will help us accurately pinpoint the issue.
Why Is It Better to Avoid Excavation Around a Pool?
Gaining access to drainage around a pool can be challenging and often results in damage. Typically, accessing 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, restoring the paving and landscaping can be extensive and costly.
This is why 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 about three significant issues in their backyard:
- A blocked stormwater line next to their in-ground pool
- Gurgling noises 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 several blocked junctions located about 3 metres beneath the pavers.
The images below illustrate the situation: the first shows the blocked pipe before intervention, while the second depicts the same pipe after the relining process.
Rather than recommending excavation, we followed these 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 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 use 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 creating a new pipe within the old one. This method seals any cracks, leaking joints, and entry points that tree roots may exploit. 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 step of the relining process, from the initial camera inspection to the final stages, without 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 works well for pipes that are damaged but retain most of their shape. If a section has collapsed to the point where a liner cannot be inserted, that section will require excavation and replacement. Similarly, if a section has sunk and lost its gradient, the liner will follow the dip, resulting in stagnant water and necessitating the reinstallation of the pipe at the correct slope.
Sometimes, our camera inspections reveal that roots have infiltrated the Sydney Water main rather than your private pipes. In such cases, the responsibility for repairs falls to Sydney Water, and we provide the footage necessary to assist with the reporting process.
Frequently Asked Questions About Blocked Pool Drains
Can Drain Pipes Surrounding a Pool Be Relined?
Absolutely. We can reline the sewer and stormwater pipes located beneath pool surrounds as long as the pipe maintains its shape. Initially, we conduct a camera inspection to assess the damage and confirm that a liner can be installed. Any sections that have collapsed or sunk will require excavation and replacement.
What Techniques Are Used to Clear a Blocked Pool Drain Without Excavation?
We clear blockages using high-pressure hydro jetting and root-cutting tools. After 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 needing to lift pavers, cut slabs, or disturb the garden.
What Are the Common Causes of Blocked Drains Around Pools in Sydney?
Tree roots are a significant cause we encounter 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 accountable 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 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, 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 after the camera inspection.
Schedule a CCTV Inspection for Your Blocked Drain Near the Pool
Our goal is to identify a method for repairing the drain from within the pipe before considering excavation. We will show you the camera footage before proceeding with any work.
If you notice signs of a blocked drain near your pool, schedule a CCTV inspection or reach out to 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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