Box Gutter Sump Overflow

Box gutter design to as 3500 3 2015.

Box gutter sump overflow.

Or c a sump with a high capacity overflow device. If draining to a sump with a side overflow somewhere along the box gutter use this calculator. The side with the maximum flow is used to size the box gutter. The hydraulic capacity of these overflow devices must not be less than the design flow for the.

Rainheads are an essential design element for buildings where internal box or trough gutters are used. A a rainhead b a sump with a side overflow device. It acts as an external overflow point to reduce water surges into the stormwater system and aid the flow of water down. 2015 3 7 4 layout.

Box gutter sump size with vertical overflow. This free online box gutter calculator will calculate the size of box gutters and sumps with a side overflow in accordance with the australian plumbing code as nzs 3500 3 2003 part 3 storm water drainage. This effectively states that all box gutters must allow for 30mm of freeboard which is from the overflow point eg. All domestic box gutters must be a minimum of 200mm wide and 75mm deep.

A rainhead or sump is a container located between the gutter and downpipe that aids the flow of water away from the roof. From before max flow 10l s. The sump depth is not necessarily measured from the bottom of the bg. Intersect with chosen dp choose 125 dia.

Read off sump depth 175. It depends on the value of ioc. Overflow devices consider whether the discharge of the box gutter is to. All of the above options provide overflow provision to the box gutter.