I am tech guy... We can discuss about IT Support issue here .... I hope we will resolve the issue at free of cost.
What if the keypad of my system is drenched?
In this situation, turn off your system and flip the system upside down. You can make a triangle shape while flipping so that water can prevent it from going to other parts of the system. Leave your system in the position for 4-5 hours.
Contact IT service providers in Melbourne or your city to start the system. It has risks of data loss if your CPU is affected.