shower drain

I have a walk in shower with this drain, which is not sealed at all along the back edge and the left end. There is a void visible, which water is potentially going into. The drain flexes downwards if I press it on the left side. The shower is on the ground floor, and I haven’t found any damp in...

Hi, We are getting musty smells coming from our en-suite shower drain. I'm no expert but I believe that the water is drying up (or being pulled from the toilet) in the p trap which exposes the sewer gases. I put my nose directly over the drain and the gases hit me in the face. I'm concerned...