I think you want to hook up to the low-pressure outlet on the TT. Understand that by low-pressure, I mean after-the-regulator. On the other hand, your accessory normally takes the little green bottles that screw right into an on-the-device regulator. You have an adapter hose that takes the place of the little green bottle, and can hook directly to a 20lb LP tank.
If that is correct, then you can't do it that way. You can't take low pressure LP, that has already been regulated, and put it into the input of a second regulator. You need to connect the LP hose to the other side of the accessory regulator, i.e. the low-pressure side. However, in many appliances, the regulator is the only control you have on the flame. If you have a separate flame controller you can do it, but if your only controller is on the regulator, you can't. Trying to clear up the mud!
__________________
|