Study these words before doing the exercises.
blocked
not able to let water through because something is stuck inside
"The sink is blocked. Water will not go down."
drain
a pipe or hole that carries waste water away
"The drain under the sink is full of grease."
plunger
a rubber cup on a stick used to push a blockage through a pipe
"Try using the plunger first before calling a plumber."
debris
pieces of material such as food, hair or dirt that block a pipe
"The pipe was full of debris from the kitchen."
gurgling
a bubbling sound that water makes when a pipe is partly blocked
"The sink is making a gurgling noise when it drains."
slow
not draining quickly — a sign that a pipe may be partly blocked
"The water is slow to drain. It takes five minutes to empty."
overflow
when water rises above the top of a sink or drain because it cannot flow away
"The bath is starting to overflow because the drain is blocked."
clear
to remove a blockage so that water can flow freely again
"I will clear the blockage and then flush the pipe."
access
a point where you can enter or reach a pipe or drain to work on it
"There is an access point under the sink."
rod
a long flexible pole used to push through a drain and break up a blockage
"I will use the rod to clear the blockage further down the pipe."
manhole
a covered opening in the ground that gives access to underground drains
"Lift the manhole cover and check if the drain is clear."
camera
a small device pushed into a pipe to look for blockages or damage
"I will send a camera down the drain to find the cause."
cause
the reason why something has gone wrong
"The cause of the blockage is a build-up of grease."
unblock
to remove something that is stopping water from flowing
"I need to unblock the pipe before the water can drain."
flush
to push water through a pipe to clean it after clearing a blockage
"Flush the pipe with hot water after you clear the blockage."