Any of you Niagara, Arcadia or anybody else that has a fresh water similar to these. I'm wanting to add a piece of pipe with shut-off, to drain the fresh water tank. Should I use 1/2 or 3/4 in. pipe or does it made any difference. I haven't looked yet, does anyone know what size drain plug is in it.

DMG here is a link to my mods site where I put in a drain. I don't remember what size the pipe is but I think it is 3/4. The camper is out at the park and I am home right now so I can't look to see.
http://webpages.charter.net/dirtfisher/pwdrain.htm
Makes it a lot better not to have to crawl under to drain.