Hi, looking for some advice please.. Got a toilet with a flexible soil pipe which goes into a tiled boxed area in the bathroom. There is no access inside the boxing to get to where it connects to the main soil stack, apart from VERY difficult access through the garage ceiling beneath. On the opposite side of the previously external wall is also a shower room with another toilet back to back with this one feeding into the same soil stack. The bathroom toilet has been fine for years but at some time recently the flexible soil connector is leaking, only slightly dripping, but enough to smell and having to catch it with a yoghurt pot, yum. I'm not sure if the gap in the joint has always been there but you can see some separation of the outer ring of the push fit connector from the rest of the flexible fitting, but not all the way around, mainly at the bottom with the top still being together. The odd thing is that it is mainly dripping when the toilet in the shower room is flushed, but strangely not so much when this toilet is flushed. So the waste from the shower room toilet must be being forced up the pipe. My questions are, first, could there have been enough pressure to make this fitting fail whilst in-situ? I do remember at some point both toilets being flushed at exactly the same time. But it definitely was not leaking when I moved-in. Secondly, and more importantly, can this be fixed (bodged) to stop it leaking and not risk it completely failing and causing a right mess? I do not want to destroy the boxing to replace the pipe (full room retile) and would rather not have to go through the garage ceiling. Is there a risk the connection will just completely separate and pop-off (I assume they are factory welded)? Would a seam of Plumbers Mait/silicone or some form of tape hold it together/stop the leaking assuming nothing coming out of there is under much pressure (it only drips)? I have not tried pulling it appart but it currently seems pretty tight fitting, not loose. Just want to explore every avenue before destroying things to replace the whole flexi pipe. I have tried to squeeze the connection together again but was reluctant to put much force on it in case it broke completely. Thanks.