DISHWASHERS We have found that dishwasher detergent tablets are too powerful for a modern dishwasher. This appears to be because a modern dishwasher uses very little water, hence the small rinses may not remove all the detergent, and this holds the dirt in suspension, on your dishes. Minimum use of a good quality powder such as Finish is recommended, and it is cheaper. Rinse-aid is usually recommended for a modern dishwasher because it aids the drying process by making water slip off the dishes. The use of a dishwasher descaling product is not a very effective product. It will not unblock a machine that has a problem. WASHING MACHINES Use only the minimum possible quantity of high quality detergent. A cheap brand has been found recently to be too abrasive and damage the drain pump. OVENS The use of caustic oven cleaners is not recommended. There are some good quality non-caustic versions available.