Sumps are usually attached between a box gutter and the downpipe.
Box gutter sump size.
The width can also be any shape.
The outlet must be no further than the diameter of the outlet to the centre of the outlet.
However any width can be entered.
A box gutter is given its name as it is usually boxed into the middle or edge of the roof.
Colorbond box gutter measures 150mm x 150mm x 150mm.
Trial box gutter width the minimum width allowed for commercial projects is 300mm for domestic projects 200mm.
Vertical faces enter the full vertical face area.
The minimum size of a sump is 400mm x 200mm minimum width of box gutter and 150mm deep.
They collect storm water before it is carried away by the downpipe and they also serve to catch any debris before it enters the downpipe.
Custom design the width of the rain water head can be increased to any width.
Sizes the depth shown of the box gutter is the depth at the upstream end.
The rectangular overflow width is equal to the box gutter width less 100mm.
Deviations from the gradient must be smooth and prevent towards the outlet without a proportional permanent ponding.
Sump with a side overflow device sumps do require an increase in the depth of flow in the box gutter and gutters are to be fitted with either.
Learn more how to storm water design for building sites.
Sumps can be made to order but are commonly manufactured in either 100mm and 150mm depths.
Overflow devices need to discharge to the atmosphere in such a way as to prevent damage to buildings and property.
Sides must be vertical.
50mm clearance on both sides.
Box gutters should have a minimum fall of 1.
The gutter collects the water and disposes of it through the drainpipe.
Downpipe eaves gutter long straight eaves gutters box gutter to rain water head box gutter vertical faces box gutter side o flow box gutter vertical o flow storm water pipe size storm water network overland flow path spitter upstream end custom rain water head.
Box gutter gradients shall not be flatter than 1 200 for sole widths equal to or less than 600mm wide.
Must have a constant slope between 1 40 and 1 200.
For the associated box gutter outlet.
Box gutters must be straight no bends.
How much fall should i have on a box gutter.
Experiment with this figure to get the depth of box gutter you require.
Tapered from the bottom of the box gutter to the downpipe if required.
Down pipe must be vertical from sump not to the side minimum sump length is 400mm.
Experiment with this figure to get the depth of box gutter you require.
But cannot be reduced to less than the box gutter width.
