DESIGN of EAVES GUTTERS, BOX GUTTERS & DOWNPIPES
to the Australian National Plumbing Code AS/NZS 3500.3.2:2003

NEW: Water Pipe Size Calculator Diagramatic of eaves gutter and downpipe DOWNPIPE AND EAVES GUTTER CALCULATOR
box gutter at end diagramatic BOX GUTTER AND 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 and box gutter BOX GUTTER AND RAIN WATER HEAD
AT END OF BOX GUTTER

Allowance for vertical faces and catchments on both sides of box gutter.
Sump diagramatic with side overflow BOX GUTTER AND SUMP
WITH SIDE OVERFLOW

Allowance for vertical faces and catchments on both sides of box gutter.
Sump with vertical overflow BOX GUTTER AND SUMP
WITH VERTICAL OVERFLOW

Allowance for vertical faces and catchments on both sides of box gutter.
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 OPEN CHANNEL, OVERLAND FLOW CALCULATOR
Map of Australia Intensity, Frequency, Duration curves. For Australian towns.
Intensity, Frequency, Duration curves. For New Zealand.
Requires coordinates of location.
Found by google search " 'your required location' coordinates"
Alternatively download the 1:100 year map.


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


Spitter at upstream end 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.
Copyright 2014 Ken Sutherland