Box Gutter Sump

It is easier to mark and cut the spigothole prior to fitting the sumpinto the box gutter.

Box gutter sump.

Overflow devices need to discharge to the atmosphere in such a way as to prevent damage to buildings and property. 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. The depth shown of the box gutter is the depth at the upstream end. The outlet must be no further than the diameter of the outlet to the centre of the outlet.

This is a good size for the required flow. For the associated box gutter outlet. The mod tec gutta sump can be fit ted simply from within the fitted box gutter this assists the accurate locating of the sump. Choose an available size or any other size and enter that for the calculation of the sump.

The minimum size of a sump is 400mm x 200mm minimum width of box gutter and 150mm deep. Down pipe must be. Code box gutter requirements the minimum width allowed for domestic projects is 200mm. The spigotcan also be fitted from inside the sump this allows the downpipe to be fitted up to the sump.

Must have a constant slope between 1 40 and 1 200. For commercial projects the minimum allowable width is 300mm.