An alternate system runs on the fog or good mist injected into the intake air stream. Although many commercial systems are available, growers can assemble and install their own system utilizing a ruthless piston pump and fog nozzles. The basic components are proven in Fig. 1. A two-stage system managed by a two- stage thermostat enables more water to be employed on excessively warm, shiny days. Temperature settings ought to be 5-10°F apart.

Algae development in the pads may become a problem that will decrease the effectiveness of the machine and result in accelerated deterioration of the pads. The addition of an algaecide to the water supply can help in control.

It is desirable, especially in hard water areas, to add a wetting agent to the drinking water to obtain additional uniform wetting of the pads. A commercial material or liquid household detergent at the price of 2 tablespoons per 100 gallons can be used.

Drinking water for the pads ought to be clean and low in mineral content to avoid clogging and coating of the pads. A pump, pipes and gutters are accustomed to recirculate the drinking water. A flow rate 113 gallon each and every minute per linear foot of pad system ought to be provided to make sure adequate wetting.

In the most typical cooling system (fan and pad), the fans draw air through wet pads that expand the length of one endwall or sidewall. Aspen and coated cellulose are normal pad materials that always have life of 1 to three years. Approximately one sq . foot of pad are is necessary for 20 square feet of floor area.

Are you curious about Greenhouse Auto Vent?