What component must be sited immediately after the supply stop valve on entry to a property?

• Single check valve

• Ferrule valve

• Drain off valve

• Service valve

What type of valve should be installed in order to isolate the CWSC?

• Service valve

• Float operated valve

• Gate valve

• Stop valve

If the service pipe is located within 750mm of the outside wall, what action should be taken?

• Contact the Water Undertaker

• Reposition pipework further than 750mm

• Reposition the wall so the pipework is further than 750mm

• Insulate the pipework

Limescale is created by what mineral being in temporary hard water?

• Calcium carbonate

• Sodium

• Soft water

• Calcium sulphate

What pipes is the Water Undertaker responsible for maintaining?

• Communication pipes

• Service pipes

• Both pipes

• None of the pipes

Which of the following is NOT known as a "Underground sources" of water?

• Wells

• Borehole

• Springs

• Streams

What item should be used to test the PPM in water?

• Weir cup

• Pressure gauge

• Flow cup

• Hardness test kit

If cold water at all outlets mains fed but a CWSC is located in the loft space, what system does the property have?

• Direct system with combination boiler

• Direct system with gravity fed to hot water only

• Indirect system with gravity fed to cold and hot water

• Indirect system with gravity fed to hot water only

Which of the following is NOT a disadvantage to an indirect system?

• A stored supply of water

• More expensive

• Possible contamination

• Only one potable draw-off point

Which of the following appliances does a grey water system supply water to?

• Washing machine

• Bath/Shower

• WC

• Basin