There is septic tank feng shui at the door.
Septic tank is a treatment facility to remove suspended organic matter from domestic sewage by using the principle of precipitation and anaerobic fermentation, and belongs to the primary transitional domestic treatment structure. Domestic sewage contains a lot of feces, paper scraps and pathogenic insects ... The concentration of suspended solids is 100~350mg/L, the concentration of organic matter is 100~400mg/L, among which the concentration of suspended organic matter is 50 ~ 200 mg/L, and the sewage entering septic tank is precipitated12 ~ 24 h. The precipitated sludge was decomposed by anaerobic fermentation for more than 3 months, so that the organic matter in the sludge was decomposed into stable inorganic matter, and the perishable raw sludge was transformed into stable cooked sludge, which changed the structure of the sludge and reduced the water content of the sludge. Regularly remove sludge, transport it abroad, bury it or use it as fertilizer.
The house is sitting in a good direction, warm in winter and cool in summer, but the door should not face south, just face south slightly. Because the septic tank is in the southeast of the house, a vegetable garden can be opened there, and the fertilizer is taken from the septic tank, which not only beautifies the septic tank, but also meets the needs of being a small farmer, killing two birds with one stone. Isn't everyone advocating self-planting, self-harvesting and self-selling (planting and eating) now? As long as you have a small vegetable garden, it will not only add a piece of green space to your yard, but also beautify the appearance of the yard and adjust the feng shui. How nice!
According to the design standard of attached septic tank, the calculated volume of the settling part and rotting part of septic tank should be determined according to Article 4.8.4 ~ 4.8.7 of Code for Design of Building Water Supply and Drainage (GB500 15-2003). The retention time of sewage in septic tank should be 12h~24h. For sewage treatment system without sludge disposal, the volume of septic tank should also include the volume of sludge storage. This piece can be ignored because you already have a ready-made septic tank.