How do you size a sand filter for a residence?

To effectively size a sand filter for a residence, the established guideline is to allocate approximately 200 square feet of sand filter area for each bedroom in the house. This measurement is rooted in ensuring that the system can adequately handle the wastewater generated by the occupants, as the number of bedrooms typically correlates with the household’s water usage.

The 200 square feet per bedroom standard is designed to provide sufficient treatment capacity. It considers factors such as the expected wastewater volume and the filtration capabilities of the sand filter. This sizing helps prevent overloading the system, which can lead to inefficient treatment and potential environmental contamination.

In contrast, the other figures provided may either underestimate or overestimate the necessary filter size, which could lead to inadequate performance or unnecessary costs. Adhering to the 200 square feet per bedroom guideline ensures a balance between efficiency, effectiveness, and economic viability when designing an onsite wastewater treatment system.