drilling hole in showerlux bath

[averagejoe]

Can anyone give me detailed instructions for fitting a Grohe eurodisc to a showerlux bath.
I want to be able to fit this tap unit to the center where the showerlux bath insignia is located, with what should i use to drill the hole and how do i get over the fact that the underside of the bath at this point is triangular in shape?

 

[JPC]

does it not come with fitting instructions ?

 

[averagejoe]

No only broken english for fitting the waste which is self explantory anyway.
the bath is german made

 

[jobloggs]

I have used a holesaw for plastic/grp reinforced baths.

Don't really know about fitting tap where wall thickness varies. Suppose you could build it up locally with glass fibre and polyester resin to an even smooth thickness underneath before drilling.

Buy British!!

 

[averagejoe]

i thought i had bought british but underneath the showerlux sticker is the one from a german manufacturer.
do i use a metal or wood holesaw?
thanks for your replies

 

[red40]

Personally, I would be more inclined to use a cone drill bit of an appropriate size.