🔍 Key Concepts

• Boiler bottom blows and drains – where they normally discharge and why • Contamination risks – what happens if boiler water (with chemicals and solids) goes into different spaces like bilges or tanks • Reserve/feed systems – purpose of a reserve feed tank versus bilge or cofferdam

💭 Think About

• Think about which location is designed to safely receive hot, chemically treated, contaminated water from a boiler under pressure. • Ask yourself: which option would most likely create a pollution, fire, or corrosion hazard if you sent boiler water there? • Consider normal shipboard practice: when you "blow down" or drain a main boiler, what piping and overboard arrangements are commonly used?

✅ Before You Answer

• Verify which space is specifically connected by piping to boiler blowdown or bottom blow valves on typical marine boilers. • Check which option would avoid discharging contaminated boiler water into internal ship spaces like bilges or cofferdams. • Confirm which system is intended for clean make‑up feedwater, not for dumping dirty or hot blowdown water.