Please be informed that the minor water back flowing in the sump pump # 1 delivery line, and the NRV is faulty, and the NRV has to be replaced Size – 4 inch.   Note: Currently the valve is closed condition and pump is off condition. 

SCOPE OF WORK• Conduct a site survey to assess the basement environment.• Propose the required diesel pump specifications (capacity, model, manufacturer).• Confirm compliance with local regulations and codes (fire safety, building codes, etc.).• Install one diesel pump equivalent to one of the existing ele...