I just receive my new home and when i engage a defect inspector to check one of the defect that really concerns me is how badly made the toilet drain hole is, picture below



Is there any way we can DiY to fix this? Cause I'm quite sure all the sand will erode and fill up the pipes if we use the toilet for some.time.

Simple fix would be carefully remove all the loose sand as much as you can and then cement it.

Not hard to diy cementing for such a small area.

Would advice you to cover the drain pipe opening first though.

Since its a defect, should let the developer rectify it
DIY and they will have thousands of reasons to blame you

Yes totally agree on this. Since under warranty, just complaint to the developer for repairs. If this happens in 1st floor bathroom, it may damage the ceiling below.

huh. really speechless... the job quality really down the drain...

anyway since under warranty...
just complaint to the developer for repairs

Picture looks familiar.
Penang?