- Need a perc test for a new soakaway or drain field?
- Looking for a supplier of water for a drainage field percolation test?
You are not alone! ECS have helped hundreds of farmers, builders, developers, businesses and homeowners test their land’s water absorbency rate.
We specialise in conducting soil percolation tests, percolation tests for soakaways, and the provision of large quantities of water for percolation testing. To save precious resources, we always obtain our water direct from the utility companies rather than using treated drinking water.
Book a percolation test near you today with ECS:
What is a percolation test?
A percolation test (perc test) is used to establish the water absorption rate of soil, usually conducted before installing a private sewage disposal system, such as a septic tank soakaway. The test determines the rate in which the soil on your land absorbs a known volume of water.
How a percolation test is conducted
The percolation test consists of digging a hole 300mm square in diameter dug around the area of the proposed septic tank system. The depth of the hole should be 300mm below the proposed outlet from the sewage treatment plant or septic tank. This hole is filled with a known volume of water. The rate at which the water drains away is measured at regular intervals
What a percolation test shows
For domestic properties, the size of the sewage system is based on the measured perk rate, and the number of bedrooms in the home. The greater the number of bedrooms and the slower the percolation rate, the larger the drainage field required.
Commercial systems are sized using the perk rate and projected estimates of water usage in gallons per day.
What’s a good result with a soil percolation test for rainwater soakaway?
A good result is between 15 and 100. The closer your score to 100, the bigger the rainwater soakaway you’ll need. Reason being, the drainage will be slower.
Your percolation test will show how large your rainwater soakaway should be. The better the result, the smaller your soakaway will be.
How much does a percolation test cost?
Percolation test prices widely vary based on where you’re based and the job in hand.