Dr of BBQ
I was thinking of either silconing them together, ( only issue with that is if I have to take them out.
Right and when you have to repair something you have a mess on your hands. Or worse yet when you have allowed a bunch of very small particles of food waste go down your drain in your sinks and you have to fight to take out your waste water tank in order to clean it, it becomes a chore and that always happens in the 2nd day of a 3 day event.
No disrespect meant to Ernie but “Plumbers Tape Sucks.
Go to any hardware store and get a 90 degree bracket like you’d use on a shelf (the longer the better) and screw one to the wall for your top tank, and one screwed to the floor for the bottom tank and you should be good to go, in securing your tanks. I have found they really don’t shift as much as you’d expect.
Keep in mind everything you put into your rig is going to “Have to be removed for maintenance” at some point, so you need to make a good decision on strength VS maintenance, during your build. Never wield anything that can be glued. Or in other words don’t put it together so that you can’t take it apart in the future.
And I mean YOU, because if you have a friend design and put it together and then in 6 months your in another county, or state, and hes not there with you who are you going to depend on to fix it? I learned this from experience. And along the same lines no two plumbers do things alike.