If you need to showcase a model of a volute pump but don't want to spend a lot of money on transportation and installation, then this model is perfect for you. A real volute pump can weight around 50 kg so the main idea was to develop a similar model but in 3D printing to release some weight and also avoid assistance while manipulation and installation.
About printing: The most important part for quality are the supports. This can be hard to substract so that's why I decided to cut the model in two parts. I recommend printing it in two parts and use the one-single model if you want to print in SLA or using other kind of experimental support. 20% of support infill is perfect for good quality but maybe you want to try 10%. I had hard times removing supports with 20% support infill. Use 5% for general infill. 2 perimeters are just fine. 0.28 mm of height. Each part (A and B) is around 2-3 days of printing with a printing velocity of 55mm/s. Consider checking your spool regulary. *Important: I recommend printing the top part upside down. *
Don't hesitate to contact me if you have more questions.