The amount of detergent to use for a heaping load of laundry can vary depending on the specific detergent brand, the level of soil in the clothes, water hardness, and the size of the washing machine. It's always best to refer to the instructions on the detergent packaging for the recommended dosage.
As a general guideline, most standard detergents recommend using around 1 to 2 tablespoons of detergent per regular load of laundry. For a larger, heaping load, you may need to use slightly more detergent, such as 2 to 3 tablespoons. However, it's important to note that using too much detergent can result in excessive suds and may not necessarily lead to cleaner clothes.
It's a good practice to start with the recommended amount and adjust based on your specific needs. If you find that your clothes are not coming out clean, you can gradually increase the detergent amount until you achieve satisfactory results. Additionally, for high-efficiency (HE) washing machines, it's crucial to use detergents specifically formulated for HE machines and follow the manufacturer's guidelines.
If you're unsure about the appropriate amount of detergent or have concerns about water hardness, it can be helpful to consult the detergent manufacturer's website or contact their customer service for more precise recommendations.