u/FlightDisastrous6495

Had a shower screen installer out today who advised me that my waterstop and tile installation was incorrect - the waterstop sits 5mm min above finished floor on both sides, albeit with some very slight variation (increase) in height on the shower side where the tiling dipped slightly with the shape of the tile over shower tray used.

The installation appears to comply with the sketch provided in 10.2.17 of NCC for a level threshold, enclosed shower as shown in the second pic?