Been having drain trouble lately both at my own house and at my son's. The only things they have in common is (i) Victorian drains and (ii) quilted toilet paper in use. Coincidence?
Also, I have a set of drain rods but I don't have the little plunger disk attachment that you use to suck gunge out of a blocked U-bend. If I buy a separate disk is it guaranteed to fit my rods - IOW do they all have a standard attachment diameter & screw thread?