1. Water Tank Insulation The goal here is to prevent water leakage from the tank (financial waste) or into it (contamination from soil). Basic Steps: Cleaning: Draining water and cleaning the walls and bottom from dirt and algae. Restoration: Inspecting cracks and treating them with strong cementitious materials (like "Epoxy" or "Pentron"). Waterproofing Coating: Painting the tank with health-safe materials that prevent water penetration and inhibit bacterial growth. 2. Roof Insulation This is done to protect against rainwater in the summer (waterproofing) and from the scorching sun's heat (thermal insulation). Types of Insulation: Waterproofing: Using "Bitumen" or "Membrane" rolls to prevent rainwater from penetrating the roof. Thermal Insulation: Using "Foam" (Polyurethane) or thermal boards to reduce electricity consumption (air conditioners). Comprehensive Foam Insulation: Considered the best because it combines waterproofing and thermal insulation in a single layer. 3. Sewer Line Clearing Solving blockage problems that can lead to unpleasant odors or damage to the infrastructure. Methods Used: Pressure (Water or Nitrogen): Pushing accumulated dirt and grease masses with high pressure to clean the pipes from the inside. Electric Snake: A flexible tool inserted into pipes to break down solid objects and deposits. Chemicals: Using specialized grease solvents (under technical supervision to avoid pipe damage).