The vast majority of sewage pumping stations are simple submersibles with just two pumps. Complex calculations are therefore unnecessary as each pump has to serve as duty and the other as standby. Rather than the calculations, it is the procedure which causes the most confusion as you have to get things in the right order to avoid iterations. we used a mnemonic: "local Flygt man has pump with seals" which gives the correct order for the design of a station (location, flow, main, head, pump, well, site). The pump sizing is simply read off from the manufacturer's catalogue and requires no calculation.
Published by Peter Styles, Independent - Consultant (retired)
The vast majority of sewage pumping stations are simple submersibles with just two pumps. Complex calculations are therefore unnecessary as each pump has to serve as duty and the other as standby. Rather than the calculations, it is the procedure which causes the most confusion as you have to get things in the right order to avoid iterations. we used a mnemonic: "local Flygt man has pump with seals" which gives the correct order for the design of a station (location, flow, main, head, pump, well, site). The pump sizing is simply read off from the manufacturer's catalogue and requires no calculation.