I would consider a drain cleaning machine before a jetter; a jetter works great for certain situations, but it will also limit you if you are pressurizing water into a system and you cannot control the backup of water coming out. This would constitute more damage to the area, let alone the mess.
I used an electric eel once and it was very hard to use. I use drum machines and run Spartan equipment only.
I used that brand you had stolen also, and wrapped a curtain, pulled a TV off a table along with ripping down blinds when the cable slid over and grabbed the pull string to the blind. Those were the days of learning I swear.
One of my first experiences dealing with drain cleaning (1985) and thank god it was for family, not a paying customer.