Trap Seal Loss Requirements

The trap seal can be lost when the water level is lowered to below the bend of the trap.

• True

• False

Until the trap seal is reinstated, what will enter the property?

• Fresh air

• Noxious smell

• Water

• Light

What is a basic but common reason for trap seal loss?

• The seal water is leaking out

• The trap is too old

• The water is too hot

• The trap is too small

Trap seal loss can occur if the seal water is ________ out.

• leaking

• frozen

• heated

• colored

What could cause the seal water to leak out in a trap?

• Rubber seals not being watertight

• Plastic body of the trap being damaged

• Both A and B

• None of the above

What is a common reason for trap seal loss in warmer climates and holiday properties?

• Freezing

• Evaporation

• Overuse

• Blockage

Due to the lack of use of the appliance, the water in the trap seal ________ out. All appliances rely on the seal water being topped up by regular use.

• evaporates

• condenses

• freezes

• boils

A wind cowl can assist with the problem of trap seal loss due to wavering out.

• True

• False

According to the diagram, what happens to the water in the trap seal when there is pressure fluctuation?

• The water level increases

• The water evaporates

• There is a loss of water depth

• The water turns to steam

What is 'trap seal loss' due to momentum?

• When a small amount of water is slowly discharged down a trap

• When a large amount of water is suddenly discharged down a trap, carrying the trap seal out

• When air is trapped in the pipe

• When the trap is blocked by debris