Just received delivery of Bosch WIS24140GB integrated washing machine. Have plumbed it in. Though I did not turn its legs, but the spirit level looks ok. However, as soon as it goes into spin cycle (1200), it starts viberating badly and starts wandering around the kitchen. Is there a way to secure the machine. The instruction manual talks about 'wmz 2200', but that is just a securing nut. Does anyone has experience of using it.