DIY Plumbing Fixtures: Faucets & Showerheads Installation Guide Economic Impact Analysis Professional vs. DIY Installation: Professional faucet installation: $200-450 Professional showerhead installation: $150-300 DIY faucet replacement: $30-85 (materials only) DIY showerhead replacement: $15-35 (materials only) Average savings per project: $135-415 Water Efficiency Economics: Old faucet flow rate: 2.5-5.0 GPM New WaterSense faucet: 1.5 GPM maximum Annual water savings: 700-1,200 gallons Cost savings: $25-45 annually per fixture Longevity Investment: Quality faucet lifespan: 15-20 years Budget faucet lifespan: 8-12 years Professional installation warranty: 1-2 years Long-term DIY advantage: $2,000-4,000 in avoided service calls Technical Specifications & Plumbing Standards Faucet Types & Mechanisms Compression Faucets: Mechanism: Rubber washer compression Handles: Two separate hot/cold controls Pressure rating: 125...