Hi, can anyone advise on where to get a replacement smaller unslotted waste for an old cast iron bath please? The existing waste appears to be 1 1/4 BSP, not 1 1/2 as you'd expect. I'm including some photos of the existing installed bath waste next to a new 1 1/2 BSP waste to show the difference.
The current waste flange is 73mm so i'm tempted to dismantle the waste and trap to see if its hiding a bigger hole that would fit a 1 1/2 waste but looking at the bottom of the tub the very old trap was left in place when the piping was last changed some time in the 90's / 00's by the previous owner; presumably it was left like this as a newer 1 1/2 BSP waste wouldn't go through the hole in the bathtub.
If anyone could shed some light on this it'd be much appreciated.
The current waste flange is 73mm so i'm tempted to dismantle the waste and trap to see if its hiding a bigger hole that would fit a 1 1/2 waste but looking at the bottom of the tub the very old trap was left in place when the piping was last changed some time in the 90's / 00's by the previous owner; presumably it was left like this as a newer 1 1/2 BSP waste wouldn't go through the hole in the bathtub.
If anyone could shed some light on this it'd be much appreciated.