8202L3/6035L2SANPPT1Q2

What is the minimum required diameter for the main discharge stack in a building with up to five storeys, as per the general guide?

• 75mm

• 100mm

• 125mm

• 150mm

According to the guidelines, what is the minimum diameter required for the main discharge stack in a building with up to 20 storeys?

• 100mm

• 125mm

• 150mm

• 175mm

How is a group of appliances defined in this context?

• Two sinks and one WC

• A WC, shower, and basin

• One WC, bath, basin, and a sink

• Two baths and one basin

How many groups of appliances are considered in the specified requirements per floor?

• One

• Two

• Three

• Four

What is the horizontal distance a soil stack must terminate from a window?

• 2m

• 3m

• 4m

• 5m

If a soil stack terminates less than 3m horizontally from a window how high above the window must it terminate?

• 500mm

• 300mm

• 900mm

• 1000mm

Under what condition are stub stacks permitted for installation?

• When connected to a ventilated discharge stack within 10 meters

• When connected to a drain within 5 meters

• When connected to a ventilated discharge stack or drain within 6 meters

• When connected to a drain within 8 meters

What action is recommended if the maximum loading of 5 litres per second is exceeded in a system?

• Install a larger diameter stack

• Increase the distance between connections

• Fit an Air Admittance Valve (AAV)

• Decrease the flow from the appliances

What is the minimum requirement for open stacks when utilizing Air Admittance Valves (AAVs)?

• One in three

• One in five

• Two in five

• Three in five

According to the guidelines, what is the minimum height requirement for installing an Air Admittance Valve (AAV) above the highest spillover level of the highest appliance?

• 0.5m

• 1.0m

• 1.5m

• 2.0m