Peggy -- I don't know if this should be directed to you or the "maintenance" page but here goes. I just purchased a short peice of 1 1/2 inch ID Sealand "Odorsafe" hose to repair a small booboo I made, and looking at the hoses beneath the galley area where the waste tank resides, I tried to envision replacing all of the hose without ripping up the deck. I don't think it can be done. In the past on other forum's you have mentioned that these hoses can become permeated and should be replaced periodically. If I should ever have to do this, do I advertise for an incredibly small person to crawl under the deck and do the work or do I pull up the deck? This is an enclosed area and odor, all though minor, can be noticed. Is this one of those areas that whispers in my ear "live with it, you baby" or can I actually do something about it? Thankyou