I had never heard of a swamp cooler before so I looked it up. According to wikipedia:
Quote:
Ease of Maintenance:
The only two mechanical parts in most basic evaporative coolers are the fan motor and the water pump, both of which can be repaired at low cost and often by a mechanically inclined homeowner
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Apparently they never had to fix your swamp cooler! How much does it cost to have a service do it? That seems a lot easier.