Before you can get started, it's important to know what kind of sump pump you have. Sewage Sump Pump Installation Montclair: Having a sewage sump pump installed in your Montclair home is a great way to keep your basement dry and avoid foundation cracks. Luckily, there are a few steps you can take to fix your sewage sump pump. Sump pumps are similar to insurance in that they protect you from the risk of flooding. You'll need a wrench to help you do this. This makes the sump a prime location to funnel excess water away from your foundation. If so, you'll need to make sure you don't build the pit for the pump too close to the street.