Updated October 2026
Woodside sits in the Onkaparinga Valley, a working township with a long dairy and cheesemaking history, a main street of old stone buildings and farmland running out in every direction. Adelaide Hills Blocked Drains is a local referral service. We connect Woodside households and businesses with licensed local drain plumbers we work with who service the area.
Why Woodside drains block
The township is served by a council community wastewater management scheme, which is the arrangement most people here know as CWMS. Each property keeps its own septic tank, solids settle out in it, and the liquid flows on through a shared council line. That setup has its own failure points. The drains from the house to the tank block the same way any drain does, the tank inlet and outlet can choke with roots or scum, and a tank that has not been desludged in years stops settling properly and pushes solids into the council line.
Properties outside the scheme, which is most of the farmland and acreage around the town, run a full septic system with their own soakage or irrigation area. Everything on those blocks is the owner's responsibility. Your council can confirm which arrangement covers your address.
The pipes themselves are the other half of the story. Woodside's older cottages still run earthenware clay waste lines, and the mature trees along the main street and in the old gardens have had decades to find the joints. Winter rain in the valley saturates the ground, slows soakage and brings the marginal systems undone.
What clearing a blocked drain involves
The licensed drain plumbers we work with usually start with a CCTV drain camera, which shows whether the problem is in the house drains, the line to the tank or the outlet beyond it. Jet blasting clears roots and build-up back to the pipe wall, and tree roots in drains that have cracked the pipe are usually dealt with by relining the damaged section.
What they do not do is pump out tanks. That is a licensed liquid waste contractor's job with a tanker, and if your tank is simply full, the plumber will tell you so rather than charge you to clear a pipe that was never blocked.
A standard clear typically costs $150 to $400. Root clearing typically runs $250 to $600. A camera inspection runs $249 to $600, or $350 to $900 combined with jetting. If roots have broken an old pipe, relining typically costs $3,000 to $8,000 or more.
Frequently asked questions
I am on the CWMS. Who fixes what?
Your drains, your tank and the line to your connection point are yours. The shared council line beyond that point is the council's. A camera with a locator shows which side the fault is on.
How do I know if the tank is full or the pipe is blocked?
From inside the house they look the same. A drain plumber can check the pipes and look at the tank, and that usually settles it in one visit.
Does the council pump out my tank?
Arrangements differ by scheme and by council, so check with yours. Either way, desludging is tanker work rather than something a drain plumber does.
Drain trouble in Woodside? Get a fast quote and we will connect you with a licensed local drain plumber.