By Grant Laidlaw Gert asks: Grant, my staff have the idea that once a drill bit is no longer sharp the bit should be replaced. This becomes expensive. Although basic I think that this would be of considerable help. Thanks. Hi Gert, yes this is basic but one of the skills that unless you have [...]
By Grant Laidlaw Elias’s team asks: Hello Mr Grant, Thank you for advice. Can you please write on chilled water systems and pumps. We do maintenance and repairs on big plants but do not always understand these systems. Hi Elias and team, In the last article I looked at pumps and their selection. I will [...]
