EMPT. 2. WATER HEATER TYPE IS A SOLAHART MODEL 302L 80 GALLON CAPAPCITY WITH OG 300 RATING. 3. THE SOLAR WATER HEATER SHALL BE PROVIDED WITH AN AUTOMATICE READILY ACCESSIBLE MANUAL SWITCH THAT CAN TURN OFF THE HOT-WATER CIRCULATING PUMP WHEN THE SYSTEM IS NOT IN USE. 4. THE SOLAR WATER HEATER PIPIN