secure toilet pan

[johnbuckley]

I am installing (diy) a 'back to concealed cistern unit' toilet pan. All of the plumbing is done and I'm ready to fit the pan. My concern is with regard to securing it to the floor, the pan has screw holes in the side. The concern is that the floor is a concrete base with underfloor heating supplied by ground source heat pump. I don't want to screw the pan fixings into the floor as I have no idea where the underfloor heating tubes would be and if I could damage them by screwing into the concrete. Would silicon at the base and around the back of the pan be enough? I'm not happy with that idea but am a bit stuck.
On top of the concrete floor is laminate flooring which goes right under the pan.
Any advice would be appreciated please.

 

[Deleted member 267285]

You could silicone it, however imo you’d need to keep doing it, as it could work loose.

 

[terryplumb]

The laminate is a floating floor and will move ,taking the pan with it I would expect. I ,like you would be hesitant to drill into the floor ,so would use silicone ,and as said above ,expect to have to redo.

 

[johnbuckley]

Thanks for your replies CBW & Terryplumb.