Frequenty Asked Questions
How can I clear a blocked sink?
Initially remove any obstacle from in the plug hole i.e. food, hair and other blockages. This can be achieved by using a suitable chemical cleaner or caustic soda. (Ensure chemical is suitable for the type of sink and plug hole you have e.g. enamel sink or chrome plug hole).
If this does not clear the sink then a sink plunger will be required. Before 'plunging' cover the overflow with a damp cloth and hold it there, this will force the air to hopefully clear the blockage. Place the plunger cup over the plug hole, and plunge vigorously up and down for a minute or two.
Should the plunging not clear the blockage then the next step is to remove the trap under the sink. A bucket should be placed under the trap to catch the water, which will come from the sink. Check the trap for any blockage, if it is clear then a pipe cleaner (such as a flexible curtain wire) should be used to dislodge the blockage if possible.
If the pipe cleaner does not dislodge the blockage then it is probably in the drain. You will need to contact your plumber.
How can I detect a blocked drain?
Is your drain blocked? Early detection of a blocked drain can drastically reduce the work involved for a plumber to unblock and clear it, saving you money.
Signs to look and listen for include a gurgling or gulping sound (often accompanied by a smelly drain grate) coming from the floor waste or toilet when water is in use. Another sign of a blocked drain is the water level in the toilet rising above or falling below normal levels, and/or the drain outside the house overflowing, especially after the washing machine has been in use. The floor waste overflowing during a shower may also indicate a blockage.
If you do suspect that you have a partially blocked drain it is best to call in a plumber to clear it as soon as possible.
How can I prevent a blocked drain?
Tree roots are the most common cause of blocked drains. Especially in the hottest months of summer, trees will be thirsty for water and will be drawn to the condensation that forms on the outside of pipes. These roots will eventually break through and gradually cause a stormwater or sewer blockage.
When we clear a blocked drain we try to identify for the customer which trees are most likely to be causing the problem. As a general rule trees and plants should be planted as far away as possible from sewer and stormwater drainage lines. Sydney Water also publishes a list of known problem tree species on their website and it is worth referring to this if you are about to plant trees.
It is also important to be careful what you put down your sinks. Fat and grease will stick to the inside of drains and should never disposed of down the sink. Large amounts of hair can cause clogged or blocked drains and should be prevented from going down your shower waste or vanity basin. Excessive toilet paper is a common cause of a blocked toilet. Cement or plaster from DIY repairs will also prevent water flowing smoothly through your sewer and may cause a blocked drain. | 
