John E Davies Posted May 13, 2018 Share Posted May 13, 2018 Teaser: I am sure dust is leaking into lots of places I haven't seen yet, like all the scupper drains and the roof vent. For sure I see it around the door seal near the hinges and the bottom, the aft outside storage door near the shower, and I am getting serious leakage under the fridge ... but that one is most probably a bad seal behind the flanges of the unit that I can fix: The Aussies do this all the time to deal with "bull dust". The basic idea is that you add positive pressure (clean, highly filtered air) to the cabin, shut all vents and openings, and the air leaks out any places dust would normally enter. As tight as the ollie is, it would not take a lot of airflow to be effective - 100 cfm should be more than plenty.: [attachment file=Aussi Dust syatem.JPG] I mocked up a system on Mouse and think I could duplicate that one for less than $300, using a smaller filter assembly. [attachment file=Donaldson FRG filter screen cap 03.png] That unit will fit behind the street side propane bottle, I already have side access doors. It will be easy to remove the end cap for filter replacement, and the dirt purge valve will point down to exit around the frame members. Excuse the poor graphics: [attachment file=IMG_4920 Labled.jpg] The inlet can go into the cabin here, I think. Does anyone know what is behind the X? I am almost, sort-of, sure that it is clear under the bathroom vanity. [attachment file=IMG_4916 Labled.jpg] An inexpensive 3 inch bilge blower will fit here: [attachment file=IMG_4838 Labled.jpg] Because there is lots of room on the faucet side of that cavity: [attachment file=IMG_4841 Labled.jpg] Getting the pipe in would be simpler if the X location were available, if not it could be brought in from higher up but that would complicate the plumbing. Power is there at the water pump switch (the fan motor draws less than 4 amps) and I could add another waterproof switch. Air entering the vanity would diffuse throughout the floor and enter the cabin through the heater grill and other openings. The inlet pipe from the air filter would go straight up between the two bottles, 90 degree elbow to the street side and then 90 degree elbow up to a snorkel tube: [attachment file=IMG_4927 Labled.jpg] If you wanted a totally stealth installation you could elbow down and install a washable pleated filter but that would be maintenance intensive, and the air under the doghouse is not too clean. Here is the snorkel: [attachment file=IMG_4933 Labled.jpg] Side view, it would fit pretty close to the front hull seam. You would have to notch the doghouse cover to clear it.: Thoughts? Am I insane? I think it would look totally cool..... John Davies Spokane WA 5 "Mouse": 2017 Legacy Elite II NARV (Not An RV) Two Beds, Hull Number 218, See my HOW TO threads: https://olivertraveltrailers.com/topic/john-e-davies-how-to-threads-and-tech-articles-links/ Tow Vehicle: 2013 Land Cruiser 200, 33" LT tires, airbags, Safari snorkel. Link to comment Share on other sites More sharing options...
Create an account or sign in to comment
You need to be a member in order to leave a comment
Create an account
Sign up for a new account in our community. It's easy!Register a new account
Already have an account? Sign in here.Sign In Now