I started to attempt the base last weekend but as you can see after 2 hours 7 buckets of cement later that's all I got done . It's to hold a 1000l IBC so I was thinking of hiring a mixer for weekend or getting a cement mixing tray, would a cement mixing tray be quicker than a flexible plastic tub? Also should I carry putting cement on or take it out start from scratch and cement all in one go?