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GRAEME SMITH CONSULTING Hydroponic Consultancy Services ...

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The equipment consisted of a long shaft with a metal head brush that was driven by a<br />

heavy-duty drill that allowed easy cleaning of the tubes. In addition the unit had a<br />

commercial vacuum cleaner to trap dust particles (these particles can contain heavy<br />

metals injurious to human health)<br />

Specialist insect screening for glasshouse<br />

ventilators was demonstrated. These screens<br />

were available in grades to suit different insects<br />

and air-exchange rates<br />

Under-bench heating coils to supply direct rootzone<br />

heating for various systems (inc pot culture)<br />

These systems are in common use in seedling<br />

nurseries, etc.<br />

© Graeme Smith Consulting Page 17 of 26 June 2006

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