Hi Andy, the machine does not move but the drum vibrates a little on spin - I must admit the springs all look the same. we tried a short wash with the lid off - because I had never seen how much a drum moves I was not sure how much it should move and couldn't find a video of how it should be. I replaced the suspension dampers in good time before the machine started to violently rock so little strain was put on the springs. As you say the springs are very robust so I think we will put the lid on. we noticed a small weep from the hose on the top of the drum(the hose from the soap dispenser). I have smeared silicone around this not knowing if there is a special sealant - do you think this will work.
thanks very much for your reply