Fitting toilet to concrete floor...

ToAoB

I would like to fit in new toilet (and basin) to concrete floor without cementing them in.

There is two screw holes but there's this blasted gas pipe that might run directly under the two screwholes - obviously I am not taking any risks in this

Is there any other alternative to securely fit this in? I was thinking perhaps put on top of 18mm exterior plywood and screw it on that?

Someone suggested I use Gripfill to secure toilet to concrete floor...?

Any other tips please? Thanks

espresso

Just use a metal detector device to find out where the gas pipe runs and use screws!

ToAoB

I did try that initially it did not really pick up much, there's some kind of wire mesh in the concrete as well. I did not want to move the toilet further away from the wall leaving a big gap in order to use screws

Mr_Warren_2

How about chiseling concrete out in order to check if gas pipe is in the way. Re-concrete with the contents of a ready-mix bag and drill/plug/screw when its dry.

Wig

Drill in slowly slowly, easy does it steady as she goes, hoover out every few seconds, use a small bit to begin with. You will notice the difference when you (if you) meet the pipe.

bruce2110

all you need to do is silicone seal the pan down to the concrete floor. simple really, thats all we do on new build installations, it saves any risk from damaging the pan, plus if you install the basin properly back to the wall, the pedastol wont move that much, plus if you seal the base of the pedastol with silicone as well it wont move at all!!

and before anybody shoots me down for not fixing pans to concrete floors, i have had more problems with our plumbers trying to fix them down by either cracking them, braking them or slipping with drills and scratching them so we now silicone them to floor which when the silicone has gone off, and the cistern is fixed back to the wall makes the toilet just as solid as if it was screwed down.

hth,

Bruce2110

ToAoB

is that silicon for porous surface?

the one I have is for non-porous surpface (hence not suitable for concrete)

but the gripfix - one of the surface must be porous (concrete is) but would this work?

or shall I apply it on top of thin/thick cutout plywood? The plywood can be screwed down onto the floor out of the way where the pipes are?

plumb1_2

bruce2110 wrote:

all you need to do is silicone seal the pan down to the concrete floor. simple really, thats all we do on new build installations, it saves any risk from damaging the pan, plus if you install the basin properly back to the wall, the pedastol wont move that much, plus if you seal the base of the pedastol with silicone as well it wont move at all!!

and before anybody shoots me down for not fixing pans to concrete floors, i have had more problems with our plumbers trying to fix them down by either cracking them, braking them or slipping with drills and scratching them so we now silicone them to floor which when the silicone has gone off, and the cistern is fixed back to the wall makes the toilet just as solid as if it was screwed down.

hth,

Bruce2110

Quite shocked to hear that you just silcone them down, what happens when the floor is not level? what do you use to level the pan? or do they just stick it in and level the cistern, not the correct why as you know!
And i would retrain your plumbers if the can't fit a pan to a solid floor without causing any damage, or at least issue them with a Hb pencil.

Another missuse of silcone!

ToAoB

plumb1 wrote:

Quite shocked to hear that you just silcone them down, what happens when the floor is not level? what do you use to level the pan? or do they just stick it in and level the cistern, not the correct why as you know!
And i would retrain your plumbers if the can't fit a pan to a solid floor without causing any damage, or at least issue them with a Hb pencil.

Another missuse of silcone!

Can you tell me how you would do this please? I am need some advice before starting doing something about it - if not silicon then what? Thanks

griff.

I am interested in the use of silicone sealant to make steady pieces of furniture, it's just not something I would have ever considered. Is it better than 'No More Nails' ?

espresso

griff. wrote:

I am interested in the use of silicone sealant to make steady pieces of furniture, it's just not something I would have ever considered. Is it better than 'No More Nails' ?

Don't bother because it's a silly idea!

I totally agree with plumb1's comments that a good tradesman would not have any difficulty doing the job correctly and using silicon sealer to fix is simply a lazy bodge.

I suppose that they also use the silicon sealer as a filler to fill the unused screw holes!

:rolleyes: