I need to install a drain underneath an existing concrete garage floor - ab out a 5 metre run. This seems to be a daunting task.
Would cutting through a channel using a motorised disc cutter be a viable m ethod? The floor is about 4-5 inches thick. I would be interested in hearin g of any experience with this.
As another task, I want to remove the up-and-over garage door and replace i t with a brick wall, having a normal door opening in it. Would it be safe t o build a brick wall (dimensions typical of a single garage door opening) s traight onto the floor, or would some form of footing be advisable? If norm al brick would be too heavy, I guess lightweight blocks and rendered would be OK.
Thanks.
Chris