3. A tablet according to claim 1 wherein the average particle size of the limescale remover is from about 100 µm to about 500 µm. 

4. A tablet according to claim 1 wherein the non-ionic surfactant is selected from the group consisting of: poly ( oxyalkylated) alcohols, end-capped poly( oxyalkylated) alcohols, alkylene oxide condensates with propylene glycol or alkylene diamine adducts, and mixtures thereof. 

5. A tablet according to claim 4 wherein the non-ionic surfactant is present in a level of from about 2% to about 18%, by weight of the tablet. 

6. A tablet according to claim 5 wherein the non-ionic surfactant is present in a level of from about 4% to about 15% by weight of the tablet. 

7. A tablet according to claim 1 wherein the enzyme has 15 an optimum enzyme activity in the pH range from about 5 to about 11. 

8. A tablet according to claim 7 wherein the enzyme has an optimum enzyme activity in the pH range of from about 7 to about 10. 

9. A tablet according to claim 7 wherein the enzyme is selected from proteases. a-amylases and mixtures thereof. 

10. A tablet according to claim 9 wherein the enzyme is an a-amylase derived from Bacillus licheniformis. 

11. A tablet according to claim 1 wherein the tablet further comprises at least one additional component selected from the group consisting of builders, aesthetic agents, polymeric dispersants, disrupting agents, binders, shine improvement agents, residuality improvement agents and mixtures thereof. 

12. A tablet according to claim 1 wherein the tablet comprises from about 10% to about 50%, by weight of the tablet, of said sodium sulfate surfactant carrier. 

13. A tablet according to claim 12 wherein the said surfactant carrier has a weight average particulate size of less than about 20 µm. 

14. A method of manufacturing a tablet according to claim 1 comprising the steps of preagglomerating the non-ionic surfactant and sodium sulfate surfactant carrier, admixing the limescale remover acid and detergency enzyme and compacting the mixture in a tablet press. 

15. A method for cleaning dishwashers and washing machines, said method comprising placing a tablet accord- ing to claim 1 in the interior of the machine and running a high or a low temperature wash program, in the absence of a dishwashing load. 

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