I've tried several different DIY places and bought 40mm grommets ,.they all seem to be around 63mm and.just wont push in, I reckon the soil pipe branch has been discontinued , bit lost now really,
I'm trying to connect a 40mm grommet into an access branch, but the new grommets wont fit in, it must be an older access branch, on measuring the opening a 50mm diameter might do the trick, but cant seem to buy one, any ideas where I could get one.
