Thanks for the response Latewood, the reservoir technique I read about is from a book. I have attached a scan of the page describing reservoir system.

Between DWC and Reservoir I understand that in DWC that roots are suspended in a chamber of 100% humidity that also acts as the nute reservoir with air stones.

Whereas reservoir (as described from inset) pots sit in the pool of nute soultion that is aerated with air stones as well. Nutes and H20 is delivered capillary action.

Sorry for the confusion if they two systems are variations of each other, my main purpose was to get opinions of any other members who haved used either system and/or pointers

Thanks again everyone