Down pipe must be vertical from sump not to the side minimum sump length is 400mm.
Box gutter sump size.
Box gutters should have a minimum fall of 1.
Custom design the width of the rain water head can be increased to any width.
How much fall should i have on a box gutter.
Box gutters must be straight no bends.
The rectangular overflow width is equal to the box gutter width less 100mm.
Trial box gutter width the minimum width allowed for commercial projects is 300mm for domestic projects 200mm.
However any width can be entered.
Sides must be vertical.
Box gutter gradients shall not be flatter than 1 200 for sole widths equal to or less than 600mm wide.
If draining to a sump with a vertical overflow in the middle of the box gutter use this calculator.
Experiment with this figure to get the depth of box gutter you require.
The width can also be any shape.
Overflow devices need to discharge to the atmosphere in such a way as to prevent damage to buildings and property.
But cannot be reduced to less than the box gutter width.
Sumps are usually attached between a box gutter and the downpipe.
Colorbond box gutter measures 150mm x 150mm x 150mm.
The gutter collects the water and disposes of it through the drainpipe.
Vertical faces enter the full vertical face area.
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.
Must have a constant slope between 1 40 and 1 200.
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.
Sizes the depth shown of the box gutter is the depth at the upstream end.
Tapered from the bottom of the box gutter to the downpipe if required.
50mm clearance on both sides.
Deviations from the gradient must be smooth and prevent towards the outlet without a proportional permanent ponding.
The minimum size of a sump is 400mm x 200mm minimum width of box gutter and 150mm deep.
Trial box gutter width the minimum width allowed for domestic projects is 200mm.
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.
For the associated box gutter outlet.
Learn more how to storm water design for building sites.
A box gutter is given its name as it is usually boxed into the middle or edge of the roof.
Experiment with this figure to get the depth of box gutter you require.
