Is there a self serve laundry in Les Diablerets? Walking or bus distance from the Eurotel Victoria would be a plus.
Quick search gave me a "salon-lavoir" - laundry - at rue de la Gare 52 in les Diablerets. Tel: 079 647 79 45
I have no idea whether this is self service...
That appears to be a commercial laundry, not self-serve. Laundry service from the hotel was expensive and had a 48 hour turnaround.