Choose an available size or any other size and enter that for the calculation of the sump.
Box gutter sump.
This ensures that there is no blockage of any kind meaning that all of your roofing accessories can function at their optimal level.
This is a good size for the required flow.
The water is drained via downpipe nozzles or via a sumps downpipes built into it.
Down pipe must be.
Sumps are attached between a box gutter and a downpipe where they collect stormwater before sending it down the downpipe.
A good box gutter design will have falls along its length together with sumps to collect water before it is fed into large downpipes.
A rainwater sump catches any debris or unwanted materials from travelling down the drain pipe and into any drains.
A box gutter is given its name as it is usually boxed into the middle or edge of the roof.
Sides must be vertical.
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.
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.
For the associated box gutter outlet.
Sumps rainwater goods roofing supplies queensland sheet metal.
The outlet must be no further than the diameter of the outlet to the centre of the outlet.
How much fall should i have on a box gutter.
Sumps can be made to order but are commonly manufactured in either 100mm and 150mm depths.
The depth shown of the box gutter is the depth at the upstream end.
The mod tec gutta sump can be fit ted simply from within the fitted box gutter this assists the accurate locating of the sump.
Code box gutter requirements the minimum width allowed for domestic projects is 200mm.
The gutter collects the water and disposes of it through the drainpipe.
The theoretical down pipe diameter is shown for reference purposes only.
The spigotcan also be fitted from inside the sump this allows the downpipe to be fitted up to the sump.
Box gutters must be straight no bends.
It is easier to mark and cut the spigothole prior to fitting the sumpinto the box gutter.
Box gutters should have a minimum fall of 1.
Typically a box gutter is trapped between two roofs that feed rainwater into it.
Sumps are usually attached between a box gutter and the downpipe.
Must have a constant slope between 1 40 and 1 200.
For commercial projects the minimum allowable width is 300mm.
