When most people think about rainfall they think about the amount of rainfall . . . . . . . . . but it’s just as important to understand how hard it can rain, the ’Rainfall Intensity’.
The ‘Rainfall Intensity’ is important when thinking about things like; Roof Gutters, Down Pipes, Stormwater Pipes , Tank [read more...]
There are a lot of acronyms used on plumbing drawings so here are a few definitions:
AG – Agricultural (Drains)
B – Basin
Bth – Bath
BT – Boundary Trap
DP – Down Pipe
HWS – Hot Water Service
IC – [read more...]
Basement, or underground garages are becoming more popular.
Its one way of getting a bigger house on a smaller inner suburban block.
Before you make a decision to go for this solution its worth thinking about the cost, and the risk.
They aren’t a cheap solution for a few reasons:
There is a [read more...]
Have you ever wondered what this is in your garden?
Perhaps you have seen ‘ORG’ on a drawing.
Well the answer is it’s called an Overflow Relief Gully. It needs to between the house and the connection to the main sewer.
An ORG is a vital part of protecting your house against Sewage blockages [read more...]
What do you think of this Cubby House that someone built in their garden, soon after moving in?
Well it looks pretty good…………………………. Solidly constructed building, nice colourful paint job, and securely bolted down to a convenient concrete slab.
So why is it a Fail?
Well have a look at this close up of [read more...]
When I started in the drainage business 40 years ago we called them Manholes.
Since then due to political correctness we have had; Person Holes, Access Points, Inspection Pits, but now we seem to be coming back to calling them Manholes.
We are not talking about the small inspection covers less than 300mm across [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...]