Sealing shower cubicle where tiling upstand is not recessed?

[notanotherleak]

Am looking for some advice on how best to seal my shower cubicle

I had a shower cubicle replaced 2 years ago. We bought a CORAM tray with a tiling upstand. The cubicle has 3 tiled walls and one door. Annoyingly we have discovered a leak between the tray and one of the walls which we have been trying to fix.

Looking at our tray it appears that the tiling upstand was recessed into 2 of the walls but not the third. This is the wall where we have the leak. Could this be a problem and the reason for the leak?

We have removed the sealant and are trying to reseal. The gap is 2mm . It looks quite big - any tips?

Thanks so much

 

[foxhole]

The tray should be sealed to wall before tiling , then again after.

 

[wanleg]

I sympathise....I had a Coram alcove shower tray, it used to bend like a banana when someone stood in it. Have a look underneath when someone is showering (I know, I know) to see where the leak is actually coming from. 2mm is a pretty big gap to plug....if it were me personally i'd rip it out and get a better tray fitted.

 

[notanotherleak]

Thank you both. Have applied lots of sealant round the bottom and so far so good.