Remote control water tank change-over valve?

[rogerthebodger]

Or you could make your own using windscreen wiper motors

http://s1335.photobucket.com/user/Distantshaws/media/WEB0922_zps1bd75c86.jpg.html?sort=3&o=64

http://s1335.photobucket.com/user/Distantshaws/media/WEB0920_zpsa6bcfff8.jpg.html?sort=3&o=65

 

[maby]

Or you could make your own using windscreen wiper motors

http://s1335.photobucket.com/user/Distantshaws/media/WEB0922_zps1bd75c86.jpg.html?sort=3&o=64

http://s1335.photobucket.com/user/Distantshaws/media/WEB0920_zpsa6bcfff8.jpg.html?sort=3&o=65

Hmmm, I think I'm a bit past my Blue Peter days!