Carmipoos

Helloes, I need a new washing machine and will probably get a Miele after reading the reviews here. The thing is, my son has eczema and I need one that uses lots of water to make sure all the detergent is rinsed out. Currently I'm waiting for a load to finish then setting the dial to half way through a cycle to give it an extra three rinses. Can somebody recommend a machine that is suitable? I should mention that I've about £500 to spend and I like silver not white. Thanks.