Gravity fill port

[nlgr54]

Newbie here. Trying to find the gravity fill port on a Thor Twist 2 LB in order to disinfect the fresh water tank. Any help would be appreciated. TIA.

[nlgr54 · Accepted solution]

I managed to find it. It's located above the main fresh water drain shutoff valve. The Thor owners manual is pretty useless. It is to broad in scope, it needs to be more model specific.