If using a plastic flange ring be careful not to crack the ring by screwing the anchors in too far.
How to level concrete floor for toilet.
Use tapcon anchors or a similar type of masonry concrete screws to fasten the toilet flange to the concrete slab.
I installed a toilet a few videos ago but it wasn t level and it wobbled a bit.
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Sit on the toilet again and rock back and forth or use a carpenter s level to precisely measure how even the floor is.
Screw the toilet flange onto the concrete.
With the toilet flange in place you are ready to install the toilet with a new wax ring.
There must be a 3 inch diameter drainage pipe rising up from the concrete as well as a water supply pipe coming from an adjacent wall.
If not you may need to make additional minor or major adjustments.
3 place a level on the back of the toilet.
Set it back into position over the floor drain making sure the holes in the toilet base slide over the flange bolts.
Place the carpenters level across the toilet bowl side to side and note where the bubble level is.
The first thing that needs to be done when installing a toilet on concrete is to make sure that the place you intend to install the toilet has the necessary pipes.
Reconnect the water supply line and open the shut off valve again to turn it back on.