A hydrojet pump can be used for several drain unblocking applications:
Clearing sink drains
Small sink and basin drains can be cleared using the small washer attachment.
Clearing toilet gullies
The hydrojet pump can be used to clear blocked toilet gulleys, as its toilet washer attachment is specifically for this purpose.
Clearing floor drains
Large sink and floor drains can be unblocked using the large washer attachment.
Are their variations of this type of pump?
The force pump is another type of pump which uses a powerful jet of water to move blockages.
The force pump works in the same way as the hydrojet pump.
This type of pump is larger in size and is designed to be used for more heavy duty blockages, where a stronger jet of water may be required (e.g. larger drains in which bigger blockages can accumulate or for a tough blockage that other types of plunger are unable to move).
The force pump also has a toilet attachment (larger in diameter and length), for clearing gulley blockages.