The bottom of the newly installed toilet is not fitted with a sealing ring, whether it has an aftert

If the floor and the base of the toilet are very flat, even if you don't put the sealing ring, there will be no smell, and a layer of glass glue on the outside will do.

Toilet seal installation Be sure to close the toilet inlet valve. You can turn off the water valve at the toilet, but you may also need to go to the line level or basement to turn off the water. >>>More

The newly installed toilet sealant has blistering, which may be due to the fact that it was not installed properly at the time of installation. It will not affect the use.

It was not clear where the hole was leaking. If water comes out of the toilet bowl along the perimeter holes, it is a normal function. If it's leaking around the toilet base, it's not installed properly. >>>More

Yes, because this is an optional accessory, you can not install it, it is better to install it, so it is generally charged separately, you can buy one yourself for about 5 yuan, and let him install it when you install it.