According to SnitchSeeker:

Screenonline has created an interactive interview with Julie Walters (a.k.a. Mrs. Weasley) where users can choose which questions they’d like her to answer. There is one Harry Potter question listed under the ‘Family’ section in which Walters compares the set of The Burrow from Harry Potter and the Chamber of Secrets to her own home. She also discusses the kitchen set in detail describing how the pot washing itself in the sink was an actual machine and not edited in later with special effects.

Click here to watch it.

Thanks TLC and SnitchSeeker!