Man I’m tired of these rotten DEF systems

[redbaron]

that one bolt in the middle of the tank is the strapping that holds tank in place. Once that is removed and the zip ties are cut, you have plenty of room to lift it and rotate it for angles to pull the head out. looks worse than it really is. The first time is about a 30 min job, but after that it would take you 15 min tops to do it.

You mentioned getting a filter, thats a good plan. I would drain and replace the filter and fill with fresh once you are done with everything.