PP 6 hot water backflow prevention

where would you find an AUK2 air gap

• shower

• WC toilet

• kitchen sink

• Basin

where the shower hose has a possibility of contamination from the toilet the correct valve would be

• single check valve

• service valve

• double check valve

• pressure reducing valve

where the shower hose has a possibility of contamination from the toilet you should also fit

• shower curtain

• toilet seat

• shower hose retaining ring

• stud wall

the correct mechanical backflow prevention for a basin is

name the image