You can find pitches for campers at following places
There are pitches in Liljedal, Värmskog and Trulsön/Karba. The pitches does not include any service.
In Borgvik (http://www.hamncafe.se/in-english/) and Sävsjön (https://fishncamp.webnode.se/kontakta-oss/) there are campsites with service.
The guestharbour in Liljedal have pitches with service (http://liljedal.one/parkera.html).
You can click on the document below, and you will find coordinates and maps of the different places.
Here you can emty the tank of the camper:
GPS: N59 20 26 E13 06 27
OBS ! It´s only possible to empty tanks. Its free of charge.