How do I know the correct size of sump pump to install?
If this is a replacement and the previous one served well for a number of years, you can simply install the same size. If the old one seemed to run too often, you may want to get a slightly larger pump so it doesnft have to work so hard. If this is a new installation, 1/3 hp will normally handle occasional water flow, while a 1/2 hp will be needed if there is daily water flow. You might also consider buying a battery back-up sump pump for emergency use during a power outage, when the main pump fails or when water flow exceeds the capacity of the main pump. Apart from basic systems, you should probably have a plumber install this.
If this is a replacement and the previous one served well for a number of years, you can simply install the same size. If the old one seemed to run too often, you may want to get a slightly larger pump so it doesnt have to work so hard. If this is a new installation, 1/3 hp will normally handle occasional water flow, while a 1/2 hp will be needed if there is daily water flow. You might also consider buying a battery back-up sump pump for emergency use during a power outage, when the main pump fails or when water flow exceeds the capacity of the main pump. Apart from basic systems, you should probably have a plumber install this.