Not the easiest, but I would drop the whole bottom and do a through inspection. These things are slapped together with speed being the most important factor unfortunately.
I tied up wiring in several places, added water tank supports and supports under black and gray tanks to insure they drain properly without a bow in the center of tank. I also know everything under there and where its located should something fail in the future. Glad I took the time when it was new, no issues in 10 yrs now.:B
Knocks on wood...
