What is the total design daily waste flow (TDW) for a three-bedroom home using water flush toilets?

The total design daily waste flow (TDW) for a three-bedroom home typically takes into account several factors, including the number of bedrooms, the type of plumbing fixtures used, and specific calculations that reflect the expected daily water usage.

In most scenarios, a standard estimate for TDW can be calculated based on an assumption of wastewater generation per bedroom. For homes with water flush toilets, the general standard is around 110 gallons per day per bedroom in residential settings. Therefore, for a three-bedroom home, you would multiply this daily water usage by the number of bedrooms to achieve the TDW.

When performing this calculation for a three-bedroom home, 110 gallons multiplied by 3 would yield a TDW of approximately 330 gallons per day. This aligns effectively with the provided answer which indicates that 330 TDW with 446 linear feet is accurate. Linear feet usually pertains to the length of the system components, which are designed to accommodate the volume of wastewater generated.

Hence, the correct answer appropriately reflects the expected daily waste flow based on standard design principles in septic system planning for a home of that size with the specified toilet type.