Free mineral acids
Pitting along the bottom of the piping.
Grooves along the bottom of the piping.
Pitting on the entire surface of the piping.
Grooves on the entire surface of the piping.
All silica from feedwater
Calcium and magnesium
Cold lime soda
Hot lime soda
Sodium zeolite water
Hydrogen zeolite water
Hot lime soda
Cold lime sodap
Increase the CO2 level
Remove the CO2 level
Increase the CO level
Remove the CO level
80 to 85 percent
85 to 90 percent
90 to 95 percent
95 to 100 percent
Water, heat, and air
Air, light, and water
Heat, light, and water
Air, light, and minerals
Corrosion test coupon
The formation of scale
Caustic boiler seam cracks
Low levels of sludge formation
As soon as possible after bottom blowdown.
As soon as possible after adding chemicals.
Before firing the boiler for the first time.
Before chemicals are added or before regular blow down is accomplished.
PH reaches 5
PH reaches 9
Water’s conductivity exceeds the meter setting
Water’s conductivity drops below the meter setting
Base civil engineer and shop supervisor
Base commander and base civil engineer
Bioenvironmental engineer and base commander
Environmental engineer and bioenvironmental engineer
An acidic solution
An alkaline solution
A strong soap solution
A distilled water solution
To add lignosulfonate
The addition of sulfuric acid
Frequent hard bottom blowdowns
The constant skimming of the reservoir:
Changing operating conditions
The percent of condensate being returned
The amount of makeup water added
Seasonal changes in chemical contentrned
Precipitate magnesium salts
Condition sludge in the boiler
Neutralize sulfuric acid in the condensate lines
Neutralize carbonic acid in the condensate lines
Above the treated equipment
Below the treated equipment
Level the treated equipment
Beside the treated equipment
Replace the pump, the seals cannot be repaired.
Replace the pump body, using the old valve and seals.
Tighten the fittings by hand until very snug, replace the seal rings if it still leaks.
Tighten the fittings to 24 foot pounds of torque, replace the seal rings if it still leaks.
Excessive back-pressure causing high feed rates.
Low back-pressure causing low feed rates. rates.
A siphoning effect causing excessive output.tes.
A siphoning effect causing low pump output..tes.
Frequency of the stroke increases.
Frequency of the stroke decreases.
Amount of chemical pumped decreases.
Amount of chemical pumped increases.
Adjusting the regulating valve.
Adjusting the length of the stroke on the pump.
Adjusting the frequency of the stroke on the pump.
Raising or lowering the chemical concentration level.
Bypass feeder adjustment
Time clock pump setting
Flow proportioning control
Pour the acid into the water
Pour the water into the acid
Add the alkaline to the acid
Add the acid to the alkaline
None, if the mixture is accomplished quickly.
Enough heat generated to boil the mixture.
A mild reaction that could freeze the mixture.
A violent reaction that will solidify the mixture.
Rub the area vigorously with clean rags.
Cover the area and apply heat.
Flush the area with water.
Apply ice to the area.
Increase the CO level in the water.
Decrease the CO level in the water.
Increase the O2 level in the water.
Decrease the O2 level in the water.
Sacrificial anode system
Sacrificial current systemu
Impressed current system
Impressed anode systemem
Higher water and utility expenses.
Reduction of system efficiency and utility expenses.
Lower water expenses and reduction of system efficiency.
Increase of system efficiency and higher water expenses.
Chilled water coil.