We are the salt of the earth. Water is God's curse for fallen angels and demons. He destroyed them sending them into the sea. Jesus made the angels out of the fire from lightning. You know what lightening does when it hits water.
Water is more of a curse to a devil than truth is to a criminal.
Use a Worship team. Godly music is very disturbing to an Evil Spirit. Never do anything that is illegal in an exorcism. Just because the exorcism is over doesn't mean that its over for you. Watch your backside.