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Frequently Asked Questions
What does the fill actually do?
It is where water and air meet.
It provides the surface for heat transfer.
It determines how much cooling the tower produces.
The fan and structure serve it.
Tower performance is largely fill performance.
How does film fill work?
Water spreads as a thin sheet across formed sheets.
The sheets sit closely spaced together.
Surface area per unit volume is very large.
Performance for a given tower size is excellent.
The passages between sheets are narrow.
When is film fill the wrong choice?
When the water will not be kept clean.
Suspended solids block the narrow passages.
Biological growth does the same.
Process contamination is a common cause.
Capacity is lost quietly as fouling builds.
How does splash fill differ?
It breaks water into droplets against bars.
The passages between them are open.
Dirty water passes through without blocking.
It needs more height and volume for the same duty.
Towers using it are larger.
How is the choice made?
On the water the tower will actually see.
Not on catalogue performance figures.
Water quality and treatment regime come first.
Process contamination risk is assessed.
Then size and performance are compared.
What is drift and why does it matter?
Water leaving as droplets in the discharge air.
It is not simply lost water.
It carries dissolved solids and treatment chemicals.
It carries anything biological in the water.
Eliminators are a health provision as well.
Is replacement worth doing?
Frequently, and the gain surprises owners.
Degraded fill loses capacity gradually.
That decline is accepted as normal over years.
New fill restores the original performance.
Eliminators are usually replaced at the same time.