If so, you'll need to make sure you don't build the pit for the pump too close to the street. Once you have found a suitable location for the sump pit, you should excavate the area and make a hole. Perimeter Drain Sump Pump Montclair: The sump pump is a vital part of the basement waterproofing equation. But if your pump fails, you could end up with significant flooding. First, do you have the proper dehumidification system? Second, do you have a water alarm? A water alarm will warn you if there is water in your basement. Finally, you will need to install the discharge line. A local plumbing company may be able to help you with this process. Depending on your specific needs, you may need to get city permits.