Note: I am in Australia, which has very different toilet systems to the USA, which is why this similar question was no help to me.
I have two bathrooms, which are both being renovated, and I will be replacing the toilet suites.
One of the toilets has problems with... for want of a more delicate way to put it... skid marks. The other is absolutely fine. I want to avoid this problem with the new toilets.
I spoke to a salesman today who said it was all due to the coating on the bowl and recommended an expensive brand that he said was the best.
I am dubious. I suspect the cause is something to do with the geometric design - the relative location of the water to the back of the seat, or similar, so the waste never hits the sides. The toilet that has no problems is a reasonably cheap brand, but a discontinued model so I can't just get two more of those.
Is it all about the coating? If it is about the physical shape, is there something I can look out for in the showroom?