1, connecting network pipe diameter: according to the size of the sewage treatment plant and treatment requirements, to determine the size of the connecting network pipe diameter. Larger pipe diameter to meet the greater sewage flow, but also need to consider the cost and construction difficulties and other factors.
2, connecting network materials: the choice of network materials need to be based on the nature of sewage, life, construction difficulties and other factors for comprehensive consideration. Common network materials include steel pipe, cast iron pipe, plastic pipe and so on.