I swear that the manufacturer's must START with the water filter, and then build the entire unit around the filter, so that no matter HOW HARD you try, it's completly inaccessable. That is, unless you are a pigmy contortionist!!!!
And it must be a CONTEST between the different manufacturers.... With my previous unit, a Jayco HTT, you had to lay sideways on the floor, and inside the undersink compartment, BEHIND the sink bowl, partially hidden from view, you'd find the filter. It HAD to have been installed before the sink was installed in the countertop. (Without the sink bowl in place, it would be EASY to access!)
On my current Rockwood, it's just a little better. It's in the nose compartment, against the front of the bed support, where you have to climb half-way into the compartment to get to it.. Trouble is that they installed the filter bracket, then installed all of the plumbing around it, so there is NO WAY to remove the filter cartridge without tipping it on it's side, dumping the contents onto the floor. And did I mention that it's installed over the section where they extended the carpet from the bedroom interior under the bed support, so that when you DO spill water, it soaks into the carpet????
2014 RAM 2500 Laramie 4x4 Quad Cab w/Cummins Turbo Diesel, 2009 Rockwood 2607, and 3 'yaks!
300W of Suntech Solar, a Rogue MPT-3024 Controller, and a Xantrex PW2000 Inverter