One of the problems that happen all too often during a new house build is that Sewers and Drains get filled with concrete.
Its normally happens on:
A knock down and rebuild project where the sewer connection wasn’t sealed during demolition. A Battle Axe block subdivision where the new home is built close to the [read more...]
Thanks to SaveH2O, of Supadiverta
This diagram indicates a charged drainage system. These are sometimes called either a “wet” or a “pressure” system.
With this type of system a section of the pipe always remains full unlike a Conventional System.
As the pipes are under pressure it is essential all the joints [read more...]
The vast majority of new houses will have a conventional (sometimes called a Gravity, or Open system) storm water drainage system discharging to either:
Public Surface Water Drain – Typically in Eastern States Soakwells on Sandy Sites – Mainly in WA
With a conventional system like this the pipes are either vertical or [read more...]
It’s important to make sure you are getting the right type of pipes and fittings that will be underground…..you don’t want to be digging them up in case of blockages.
Some plumbers will want to use and bury 90 mm diameter rainwater pipes, basically plastic downpipes.
You need to make sure you are getting [read more...]
If you are wondering what this photo is about, its been taken from the inside of a 100mm sewer pipe with a CCTV camera.
What it shows is the pipe is almost completely blocked with roots that have penetrated the pipe joints.
If you think all these roots are quite thin then have a [read more...]
A lot of people aren’t sure how drainage pipes work.
“Why doesn’t the water run out of the slots at the bottom?” is a question that many people ask.
The pipes work on the principle that the soil/gravel around the pipe is water logged. This water drains into the pipe as the [read more...]
I’ve previously posted about the importance of Drainage Behind a Retaining Wall to minimise the forces acting on the wall…. here is some advice on how to make sure it works.
The first thing to consider is this is drainage of the water in the soil. You should aim to properly drain surface water away [read more...]
When researching about installing agricultural drains you will find some books recommend that you place a geotextile in the trench before the initial gravel and then wrap the geotextile over the gravel afterwards. Its something I used to do.
You can also buy agi pipe with a geotextile “sock’ around it like this:
The [read more...]