Enlarging a sump pit typically involves modifying the existing pit to accommodate a larger pump or increase capacity. If your current sump pit is too small or crowded, there are primary methods you can consider.
Based on the provided information, if the sump pit is still too small or crowded, you may need to dig through the bottom of the pail to place the main pump deeper or to cut the concrete and install a full-size sump pit.
Here's a breakdown of these methods:
Methods for Enlarging a Sump Pit
1. Deepening the Existing Pit
This method involves increasing the depth of the current sump pit.
- Process: Digging through the bottom of the existing sump pit pail or liner allows you to place the pump lower. This can be done manually using tools like a shovel or auger, provided the material beneath the pit is soil or gravel.
- Benefit: Can potentially increase the volume slightly or allow for a taller pump setup if depth is the limiting factor.
- Considerations: This is only feasible if there is accessible soil or aggregate directly beneath the existing pit. It doesn't increase the pit's diameter.
2. Installing a Larger Sump Pit
This is a more involved process that replaces the current pit with a larger one.
- Process: This requires cutting through the concrete basement floor to create a larger opening. The existing small pit is removed, and a new, full-size sump pit basin is installed in the enlarged hole. The concrete is then patched around the new pit liner.
- Benefit: Significantly increases the pit's capacity and provides ample space for larger or multiple pumps.
- Considerations: This is a major construction task involving concrete cutting, removal, and repair. It often requires professional expertise due to the complexity and potential impact on the surrounding floor structure and utilities.
| Method | Complexity | Impact on Floor | Potential Capacity Increase |
|---|---|---|---|
| Deepening Existing Pit | Low-Medium | Minor | Limited |
| Installing Larger Sump Pit | High | Significant | Substantial |
Choosing the right method depends on the existing conditions, the desired capacity increase, and your comfort level with DIY projects versus hiring a professional.
