Upon arrival, I assessed the issue with the water pressure system and identified that the fluctuating numbers were due to the absence of a specific part required for vertical backflow. I meticulously examined the existing setup to understand the exact part needed. After confirming the part, I sourced it promptly and replaced the missing component. This involved careful disassembly of the system, precise installation of the new part, and thorough testing to ensure the system operated correctly. The vertical backflow mechanism was restored, and the water pressure stabilized, resolving the issue effectively.