LOT 203.07 Demin Water

Question 1

• LOT 203.07 DWS*
• • *

What will auto start/stop the DWS Transfer pumps?

Answer 1

• Auto Start:*
• *Lead Pump: DWS Header Pressure 97.5 psig**
• *Lag Pump: DWS Header Pressure 93 psig**
• Auto Stop:*
• *Lead Pump: DWS Header Pressure 128 psig**
• *Lag Pump: DWS Header Pressure 125 psig**

• Placing switch in “MAIN” will start pump if DWST Level > 2.75’
• DWST Level > 2.75’ is a pump permissive for ALL pump starts.

• Note:*
• System has 3 transfer pumps*

Question 2

• LOT 203.07 DWS*
• • *

What alarms are available in the MCR for the DWS?

Answer 2

Pump Trouble on CP009

• Loss of control power
• Thermal overload

Question 3

• LOT 203.07 DWS*
• • *

What is the usable capacity of the DWST?

Answer 3

961,700 gal

Enough capacity to supply both units for 2 days

Question 4

• LOT 203.07 DWS*
• • *

How do we control corrosion in the DWST?

Answer 4

Plastite is bonded to metal of the tank

N₂ blanket