A sewer dosing unit (SDU) is a plumbing device to allow effective sewage disposal with low liquid-flow rates. With a global emphasis on water saving, many new buildings and renovations are seeing the installation of water saving fixtures such as low flow shower heads and
low flush toilet
A low-flush toilet (or low-flow toilet or high-efficiency toilet) is a flush toilet that uses significantly less water than traditional high-flow toilets. Before the early 1990s in the United States, standard flush toilets typically required at l ...
s. With the decrease in wastewater flows problems are arising from waste solids not being carried completely to the main sewers, often causing blockages.
History
In 2006, Ducane R&D Pty Ltd conceived the idea of a device that can store wastewater and release it in large batches to replace the drain clearing action of large volume toilet flushes. After prototyping and development the devices became available for sale in Australia, New Zealand and the United Kingdom under the brand name Drainwave in 2010.
Performance
Independent testing has shown that the use of an SDU allows for the use of low flush toilets using as little as 0.8 L to push general waste solids more than 25 metres along a typical wastewater drainpipe.
An advantage of the SDU is that it can use more than just the toilet wastewater to keep drains clear of blockages.
See also
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Water conservation
Water conservation includes all the policies, strategies and activities to sustainably manage the natural resource of fresh water, to protect the hydrosphere, and to meet the current and future human demand (thus avoiding water scarcity). Popula ...
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Water efficiency
Water efficiency is the practice of reducing water consumption by measuring the amount of water required for a particular purpose and is proportionate to the amount of essential water used.Vickers, Amy. “Water use and conservation." Amherst, M ...
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Low-flush toilet
A low-flush toilet (or low-flow toilet or high-efficiency toilet) is a flush toilet that uses significantly less water than traditional high-flow toilets. Before the early 1990s in the United States, standard flush toilets typically required at l ...
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GreenPlumbers
External links
Drainwave WebsiteYoutube – Drainwave In Action
{{Sewerage
Plumbing
Water conservation
Sewerage
Sewerage infrastructure
Sustainable building
Drainage
Water treatment