Hi . do you still have the same original toilets ?
Do the toilets only , block . is it just the pan or further down . how about bath and sinks?
I am wondering if there was a fault with the toilet pans . usually new builds use trade packs which arnt the best . I would have said maybe dona CTV scan of the waste pipe after the pan , but the issue may be worth the pans . toilet cisterns used to hold 9 litres for a flush , then it was dropped to 6 litres. Check the cistern level is at maximum.
The pan outlets are always 4 inch,(100 mm) . but sometimes the connector used to connect the pan to the pipe is the wrong gone .but vim sure the plumbers checked thuis
Check that no more than one pan connector is used , and if it is a flexible connector that is not squashed
Hi , if all has been checked then I would say that the toilet may need replacing . some are more prone to blocking than others . seems drastic , but get an ideal standard or that level of quality
I know its not cheap but I would replace the toilet. Some are prone to blockages more than others , and if everything has been checked
Hi .could you please rate my answer , thanks
Ok . all the best with it , hope you have a lovely Christmas
Many Thanks . you are a rarity . have a lovely Christmas , and yes I am curious . Toby
If you wouldn't mind , that would be great as so many time out . even after you rate me you can still continue logging on and chatting