Leveling uneven backer board - Tile Advice

[liveinsalt]

Hello experts!
The walls of my bathroom were extremely uneven and out of plumb, I've now lined them with wedi style foam backer board (abacus elements board). It has worked well for 90% of the room, walls are now mostly flat and level. Though, there are a few areas where I have still ended up with some dips/hollows. With a 6ft level across the wall, there is a dip of maybe 8-10mm in places...

Any advice on how I could take out some of these low spots prior to tiling ? Would a layer of Mapei Keraquick do the trick, and then be okay to then tile on top of once dry ?


Any help would be appreciated!

 

[hmtiling]

Hello experts!
The walls of my bathroom were extremely uneven and out of plumb, I've now lined them with wedi style foam backer board (abacus elements board). It has worked well for 90% of the room, walls are now mostly flat and level. Though, there are a few areas where I have still ended up with some dips/hollows. With a 6ft level across the wall, there is a dip of maybe 8-10mm in places...

Any advice on how I could take out some of these low spots prior to tiling ? Would a layer of Mapei Keraquick do the trick, and then be okay to then tile on top of once dry ?


Any help would be appreciated!

Yep, nothing wrong with that plan. Good luck