Finish have created a great site www.dishwashingexpert.co.uk which offers everything from cleaning tips, to repairs, to general dishwasher maintenance. Had a glance over it this morning and felt it was worth a mention. Includes sections such as the below which offer helpful tips for energy, water and money saving whilst using your dishwasher:
In terms of buying spares for your dishwasher there is also a really helpful Dishwasher Glossary that will aid you in identifying exactly what the parts in your machine are called and what you might be after if you’re looking for a spare or replacement.
If you’re looking to give your dishwasher some TLC have a look at the site and you’ll more than likely be able to find out exactly what you need to get started.