That unknown companies contacted property owners in Sala has previously happened and now the municipality warns that it happens again.
The municipality seldom flushes or films the properties' private sewers, but only takes place in exceptional cases.
That if the property owner himself has contacted the municipality and told about the problem, so that the municipality must investigate where the problem lies.
When it comes to individual property owners, they are not forced to order this type of service.
If problems arise, the municipality recommends contacting the social services unit, which in turn can assess where the fault is.
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This is what you do if you are contacted by a fake pipe washer.
Consumer Legal Advisor Sanna Westman Carling gives three tips.
Photo: Caroline Slotte / SVT