Glad it helped. I can't imagine it would do too much harm to the ground sheet part to wash it. It's a much more heavy duty fabric that the cotton canvas of the camper. Not done it, myself, but I would have thought you'd be ok with that.
------------- The one good thing about being wrong is the joy it brings to others..
------------- 2016: La Garangeoire
2015: La Garangeoire
2014: La Garangeoire & hopefully a couple of weekends in Ireland
2013: Des 4 Vents, Ile de France & Portland , Normandy, O'Connors Riverside, Doolin
2012: Actons, Clifden, Co Galway; Interlude, Ile de Re; Salthill, Co Galway; Westport, Co Mayo