Which type of RV water tank is typically used for toilet waste?

The blackwater tank is specifically designed to hold waste from RV toilets. This tank collects the sewage and human waste that is flushed down the toilet, ensuring that it is stored securely until it can be properly emptied at designated dump stations. The material collected here is typically considered hazardous waste and needs to be handled with care to avoid contamination and undesirable odors.

In contrast, the freshwater tank is intended for clean drinking water and is not suitable for waste of any kind. The greywater tank collects wastewater from sinks and showers, which contains soaps and food particles but is different from the blackwater tank in that it does not contain human waste. Lastly, the water heater tank is meant to store heated water for use within the RV and does not play any role in waste management. By understanding the specific purposes of these tanks, it's clear why the blackwater tank is the correct answer for storing toilet waste.