A Waupaca woman will spend time in prison following sentencing on a probation revocation in Waupaca County Circuit Court. 35 year old Tiffany M. Knueppel, also known ast Tiffany Grambsch, was originally sentenced to three years on probation on a delivery of amphetamine conviction in October 2018. She had sold meth to a police confidential informant in Waupaca twice in May 2017. Court records indicate she failed to follow rules of her probation. Knueppel will now serve two years in prison, along with four years extended supervision following her release. She was given credit for 178 days already served.