In Vastu Shastra, the direction of water flow within a property holds significant importance. It is generally advised to avoid having a downward slope for water drainage in the north-east direction of your home. This is because the north-east corner is considered highly auspicious and is associated with wealth, prosperity, and positive energy flow. A downward slope in this area can symbolically represent a draining away of these positive energies, potentially leading to financial difficulties, obstacles in career growth, and overall instability. Ideally, water should flow from the south-west towards the north-east, or from the west towards the east. Consulting with a Vastu expert can provide personalized guidance based on your specific property layout and address any existing imbalances.