[EMAIL PROTECTED] wrote: > I have built several floating draw offs, and I'm not sure which is best. For > the float, one can use polyethylene foam, not styrofoam!, or a sealed air > container, such as a PVC pipe with capped ends. Use a good weight on the > float to > keep it immersed in the liquid. For the hose, I recommend one of those > pre-coiled poly garden hoses, so it follows the fluctuating level without > being > pulled off to the side. I also use a guide rod down through the coil to keep > things > on the level. If you can figure a flexible joint that can stand a suction, > perhaps you could post it here. I can't find one that is flexible enough.
I haven't used any such thing for BD, but a floating pickup is often used for jet fuel in aviation fuel farms. The trick is to have the pickup tube extend a bit below the float. That way as the float changes aspect to the surface of the fuel the pickup doesn't suck air. The aviation setups usually have stops so that the pickup leaves the last 8 inches or so in the tank. I never had to worry about it, though, as my fuel farm never had any water in it. For the appropriate flexible joint, I suppose you could check with your local tank and lift supplier. AP ------------------------ Yahoo! Groups Sponsor ---------------------~--> Buy Ink Cartridges or Refill Kits for your HP, Epson, Canon or Lexmark Printer at MyInks.com. Free s/h on orders $50 or more to the US & Canada. http://www.c1tracking.com/l.asp?cid=5511 http://us.click.yahoo.com/mOAaAA/3exGAA/qnsNAA/FGYolB/TM ---------------------------------------------------------------------~-> Biofuel at Journey to Forever: http://journeytoforever.org/biofuel.html Biofuels list archives: http://infoarchive.net/sgroup/biofuel/ Please do NOT send Unsubscribe messages to the list address. To unsubscribe, send an email to: [EMAIL PROTECTED] Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/biofuel/ <*> To unsubscribe from this group, send an email to: [EMAIL PROTECTED] <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
