Are any running outlets available to use with a 112mm half-round UPVC gutter (yet to be purchased) with the existing 53mm cast iron downpipe already fixed to my wall? It's just that i'm replacing two cream-crackered wooden gutters on single-storey extensions, one of which already has a standard 68mm UPVC downpipe (easy) and the other has this old metal one (which is otherwise fine and I really want to use it if possible). Been to Screwfix and purchased the end stoppers for both gutter lengths, all the clips and screws I will require, and a running outlet for the 68mm pipe. Had a look in B&Q and they sell "Miniline" 53mm plastic downpipe, but no running outlets for the 112mm gutter/53mm downpipe combination I want. (Flow rates won't be an issue as both roof sections are very small). Could I just butcher a hole in a length of 112mm gutter above the metal pipe and seal it with Screwfix's "Sticks like Dung" or similar ;-) Any further ideas from the floor?
Thanks in advance.