We're not on tacho as classed as plant, but still doing 18 to 21hr shifts is not sustainable, im fatigued beyond it being funny, and I've told them im not on tonight's shift due to that and they were saying that its causing issues because im the only one with aa bowser and capable of filling plant on site with water and diesel, but they said they will try and get it covered for me, so abit of them saying that they know im knackered but cant really let me rest