Here are some ways to judge whether a hose pump is good or bad:

Flow range: Determine the flow range of a good hose pump. Make sure the pump you choose can meet the flow requirements in your application.

Pressure requirements: Determine the maximum operating pressure you need. Hose pumps can usually provide pressures up to 16 bar (232psi).

Pump material: The pump body and hose materials of a hose pump may vary for different applications. It is crucial to choose the right pump material for your application.

Temperature range: Determine the temperature range of the liquid in your application. Hose pumps can usually handle temperatures ranging from -10°C-80°C.

Viscosity: Hose pumps are suitable for handling low to medium viscosity liquids.

Reliability and maintenance: Consider the reliability and maintenance requirements of the pump. Learn about the life expectancy of the pump, maintenance requirements, and the frequency of replacement of wearing parts. Choosing a pump with high reliability and low maintenance requirements can reduce operating costs and downtime.

Application environment: Consider the environmental conditions of your application, such as indoors or outdoors, explosion-hazardous areas, etc.

Cost-effectiveness: Finally, consider the cost-effectiveness of the pump. Compare the prices, performance and functions of pumps of different brands and models, and choose the pump with good cost performance