In my 2006 H33, as you enter the rear cabin and lift the first cover under the mattress support, is a space that only has the white 1.5" head drain going thru it toward the holding tank. At the bottom corner of the port, forward area there is what appears to be a drain hole molded by the fiberglass. Does someone know where this goes and how it can be cleaned? I have searched my owners manual and find no reference to it in any section.
Thanks.
Thanks.