Now this maybe a good start off point for those contemplating building their own swimming pool or shophouse, ie start off with a small project first and it don't really matter if you fok it up too much.
Now let's start from the beginning, this bathroom has already been tiled and most of the other stuff fitted, so the guys have come in and angle grinded out the tiles where the concrete has to be poured, so first up they do the 2 horizontal cuts and then the 2 vertical cuts and chip out the tiles they need to.
Next drill out holes in this to stick the rebar into for when you want to pour the concrete, stick up your form work and then pour your concrete, the way this one has been done you really need to leave the supporting form work up for about 5 days, normally the side would also be poured concrete or brickwork to support it so you could take down the form within 24 hours, anyway lets see how they get on over the next couple of weeks.