DESIGN of EAVES GUTTERS, BOX GUTTERS & DOWNPIPES

to the Australian National Plumbing Code AS/NZS 3500.3


Diagramatic of eaves gutter and downpipe

Diagramatic of Overflow over the back of eaves gutters

box gutter with RWH at end, diagramatic
BOX_GUTTER WITH RAIN WATER HEAD
AT END OF BOX GUTTER. Simplified

Suitable for flattish roofs with little or no vertical faces or steep roofs draining to one side of box gutter only, or any roof if you are in a hurry and make the necessary allowances for all catchments.


Rainwater head at the end of a box gutter, With allowance for vertical faces
BOX_GUTTER AND RAIN WATER HEAD
AT END OF BOX GUTTER

Allowance for vertical faces and catchments on both sides of box gutter.


Sump in a box gutter diagramatic with side overflow
BOX_GUTTER AND SUMP
WITH SIDE OVERFLOW

Allowance for vertical faces and catchments on both sides of box gutter.

Sump in Box Gutter with a vertical overflow
BOX_GUTTER AND SUMP
WITH VERTICAL OVERFLOW

Allowance for vertical faces and catchments on both sides of box gutter.


storm water pipe diagramatic

PIPE_SIZE CALCULATOR
Including "Charged" Downpipes and pipes draining to tanks, watercourses etc.

Example Storm Water drainage plan



FULL_STORM WATER NETWORK CALCULATOR
Including Rectangular Pipes and splitting flows into multiple pipes, especially when entering Kerbs etc.
Starts with 40 pipes, but can drain those pipes into the next 40 pipes and so on.

Overland flow Diagramatic


1 in 100 year Intensity rainfall Map of Australia

Intensity, Frequency, Duration curves. For Australian towns.
Intensity, Frequency, Duration curves. For New Zealand.
These sites require the Latitude and Longitude of the job location.
These Coordinate are found by a google search of " 'your required location' coordinates"
Learn how to do it here. (a short video).


THE FOLLOWING CALCULATORS ARE OUTSIDE THE SCOPE OF THE PLUMBING CODE;
BUT ARE VERY USEFUL IN PRACTISE.


Spitter at upstream end of a box gutter diagramatic

SPITTER AT UPSTREAM END
(PLUMBING CODE USES DOWNSTREAM END)
Requires flow to be calculated in one of the other calculators.

Non rectangular box gutter diagramatic

NON_RECTANGULAR BOX GUTTERS
Code only allows for rectangular box gutters.
Requires flow to be calculated in one of the other calculators.
Almost any shape with maximum of 5 sides can be used.

Custom Rain water Head diagramatic

CUSTOM RAIN WATER HEAD
Allows for any shape of RWH. Rectangular or Circular Downpipes. Rectangular or circular spitters, any number of circular spitters, And reduction in down pipe size by using a 'funnel' section.
Requires flow to be calculated in one of the other calculators.



WATER PIPE SIZE CALCULATORS
Size every pipe in your project in seconds with just 3 clicks.
Start pressure, Length to the worst case, and height difference.
3 more clicks will get a pump size (if req'd).



Copyright
Warning: date(): It is not safe to rely on the system's timezone settings. You are *required* to use the date.timezone setting or the date_default_timezone_set() function. In case you used any of those methods and you are still getting this warning, you most likely misspelled the timezone identifier. We selected the timezone 'UTC' for now, but please set date.timezone to select your timezone. in /home/roofgutt/public_html/index.html on line 289
2017 Ken Sutherland