Those darn @!$#^%&^% Pipes! I saw a nice kit-bashed/scratch built chemical plant in an old Kalmbach book. (It was HO.) There was a mix of different sized storage tanks. The Larger tanks were from an oil refinery kit. The smaller storage tanks were old cigar tubes. Making assumtions... The water pipes are likely to be standard 1/2" diameter. That's about the same size as a cigar tube. (Only much taller! ) It sounds to me that you have the perfect location for building the Iriquois Brewery in Buffalo! If the pipes are too thin, you can always wrap them with foam pipe insulation. (This might be a good idea anyway to reduce the chance of summer humidity condensation on the pipes ruining the scenery.) Then applying rivit embossed styrene or paper to the pipe. Where the pipes reach above the height of the storage tanks, paint them to match the background. (i.e.: Paint them to blend in with the sky.) Never say Never... As far as odours go, I've got you beat... Only a couple of blocks away from my house there is the Canamara Meat Processing/Packing plant. (Stink #1.) Less than a block away on the North East corner of my street is the Head Offices, Warehouse and Labs for Benjamin Moore Paints. (Stink #2.) At the South end of my street is a huge industrial Dry Cleaner called Topper. (Stink #3.) A couple of blocks South and one block East is National Rubber Industries. (Sulfer... Stink #4) And Lastly..... Canada Bread which give off the smell of baked bread most of the time, but occasionally burns a batch. (Stink #5.) It's a real Pot-Pourrie.