my top lid of the water tank is not flat its got a bow in it what did you use to seal it
I found after trial and error...the BEST way to get to the top plate was to remove the rear roof ridge and then the rear face panels to gain access to the top plate. Be mindful of the screws as well.:-)
Depending on how bad the bow is...try to straighten it out or just as well...take measurements and have a new piece of steel cut. You do NOT want to bolt that plate in. I thought about having mine welded shut, but if for whatever reason I needed to get in there...I'd be screwed. You do not need to make more work for your self...just get that plate to fit flush and silicone the snot out of it.
Mine had two angle legs welded to it on either end...to this day I have no clue why...other than the fact that the bozo who fabricated this thing wanted to make the new owner wonder WTF? Anyway, I cut the legs off and still found because the monkey could not make four corners square...the plate could NOT go in with the handle up....but it would fit fine with the handle facing IN towards the water...so that's what I did. Then I applied a couple layers of silicone to it and all has been well.....
Lugnut