Box Gutter Sump Overflow

The side with the maximum flow is used to size the box gutter.

Box gutter sump overflow.

This effectively states that all box gutters must allow for 30mm of freeboard which is from the overflow point eg. 2015 3 7 4 layout. Or c a sump with a high capacity overflow device. However a wider overflow may increase the length of the sump.

All of the above options provide overflow provision to the box gutter. It is not necessary to use all quadrants or use vertical faces. Making the box gutter wider will also reduce the box gutter depth. Our brand is best known for manufacturing high quality line of acrylic sumps like wet dry filters reef sumps refugiums and protein skimmers.

Overflows in box gutter this has become a big issue in the past 18 months particularly in victoria and is outlined in a new section in the current update to the ncc. The box gutter depth and the sump length are influenced by the size of the overflow. A wider overflow needs less depth of overflow hence the box gutter depth will also be reduced. Overflow devices consider whether the discharge of the box gutter is to.

The total flow is used to size the sump and overflow. The hydraulic capacity of these overflow devices must not be less than the design flow for the associated gutter outlet and must discharge to atmosphere. Rainhead overflow or specific box gutter overflow must be at least 30mm below the height of the back of the box gutter. A a rainhead b a sump with a side overflow device.