I'm having difficulties figuring out how I can connect the grohe wall hung frame waste to my existing soil pipe/waste. The grohe frame clamps the waste in place which allows you to alter the angle or have it go straight down. Once the toilet is on the wall the toilet slides on to this waste pipe via an adapter. I have the frame in roughly the correct position at the right height for the wall hung toilet but I cannot find a solution to connect the 2 together.
The 135 degree bend I have is at the wrong angle for the height (the toilet would end up being 50cm+ off the floor), the 90 degree bend is too bulky as is the flexible mechanical bend (https://www.toolstation.com/adjustable-bend-0-900/p57275?searchstr=soil adjustable). I've seen there are adjustable soil pipes but again it's too bulky for the space (https://www.toolstation.com/magicflex-male-to-female-soil-pipe/p60727).
Any thoughts on how I can align the pipes? The 2nd picture shows the grohe waste pipe which clips in to the frame and I'm about 80-100mm out vertically.
The 135 degree bend I have is at the wrong angle for the height (the toilet would end up being 50cm+ off the floor), the 90 degree bend is too bulky as is the flexible mechanical bend (https://www.toolstation.com/adjustable-bend-0-900/p57275?searchstr=soil adjustable). I've seen there are adjustable soil pipes but again it's too bulky for the space (https://www.toolstation.com/magicflex-male-to-female-soil-pipe/p60727).
Any thoughts on how I can align the pipes? The 2nd picture shows the grohe waste pipe which clips in to the frame and I'm about 80-100mm out vertically.