1. government subsidies: in some areas, the government will provide some subsidy funds for eligible families to purchase and install sewage treatment equipment. These subsidies are usually managed and distributed by local agriculture, environmental protection or housing construction departments.

2. Preferential interest rate loans: Some banks or other financial institutions can provide preferential loans for rural sewage treatment facilities to help farmers better carry out sewage treatment and transformation. These loans usually have low interest rates and can enjoy certain preferential policies.

3. Tax relief: In order to encourage the construction and use of rural sewage treatment facilities, some local governments have included them in the scope of tax relief. Specifically, it includes value-added tax, business tax and personal income tax.