septic tank and cesspool

The definition of septic tank and cesspool can be found in Building Regulations. In general, both are used for storage the foul water from building.

In general, the capacity of septic tank is designed based on daily foul water discharge rate of building. Also, septic tank is connected to soakway pit.

However, the capacity of cesspool is designed based on the monthly foul water discharge rate of building.

In fact, septic tank and cesspool is adopted while there is NO public foul water drainage network around the lot boundary.

The design of septic tank and cesspool shall be approved by Building Department, Drainage Services Department and Environmental Protection Department.

There are some information related to septic tank and cesspool

1. Building Ordinance Cap 123 I B(SSFPDWL) Reg 63 to 72 http://www.legislation.gov.hk/blis_ind.nsf/CurAllEngDoc?OpenView&Start=123.10.62&Count=25&Expand=123.10#123.10

2. EPD Guidance Notes on Discharges from Village Houses
http://www.epd.gov.hk/epd/english/environmentinhk/water/guide_ref/guide_wpc_dv.html

3. ProPECC PN 5/93 Drainage Plans Subject to Comment by the Environmental Protection Department Appendix D
http://www.epd.gov.hk/epd/english/resources_pub/publications/files/pn93_5.pdf

septic tank 化糞池
cesspool污水池
自己諗諗When and where？