Quote Originally Posted by adzt1
50mm dip in the middle? not too sure about that. I see no drainage in the pic.
I said 3cm to 5cm, that is quite normal dips here, do you have drainage in your living room? Although I assume your living room is tiled or something and not rough poured concrete.

Quote Originally Posted by adzt1
who'd wanna knock up 50 mm of bed? for what.? remember the budget..
Cement, sand and water, things really don't get cheaper than that.

Quote Originally Posted by adzt1
u can have semi dry beds . they travel down well when tapping the tiles but only needed if the floor height is to be mm perfect or the initial concrete pour is out.
The initial concrete pour is always out, laying tiles, if not perfect then you don't get paid, people want their floor tiles level or sloping to a run off point.