We have the coach at home awaiting the Hydro Hot tech to do additional testing on the unit before we change the mixing valve. However, since I saw lots of bolts and nuts around which looked like they needed tighting I did them. Out of about 25 or so 9/16" nuts which are on the underside of all the storage compartments along the bulkhead edges, about 22 of them were loose. Some would not tighten up, because the head is spinning, and I believe these are bolts which hold the floor down, because I cannot access them from anywhere above that I'm aware. So I have added this little chore to my maintenance schedule, for annual checks. Thought all would want to know.
Monty & Janet - 2007 Alpine APEX 40 MDTS
S/N - 75715 - Retired - Master Certified RV Tech