Leak from sani flow caused floor to lift and leak into bank below.
The sani flow had been boxed in and tiled over with not access to maintain it.
We had to remove the box that enclosed the sani flow and replace it, then we build an enclosure where it can be removed to gain access to the sani flow.
Removed floor tiles with ease as they were not laid correctly, applied concrete fibre board to floor and retiled bathroom floor.
Tested and every thing working fine,
Carried out repairs to ceiling in bank below