I have an 8 year old top loading washing machine thats never been descaled. It is used with hard water (TDS: about 500 mg/L).
The machine does not have a built in heater. Most descaling solutions seem to require running a wash cycle with max heat and use of the descaler instead of the detergent.
Is it OK to run a descaling cycle in my machine by using a bucket to fill hot water during the wash cycle? Will I need to use hot water for the rinse cycle as well (after using the descaler)?v