This is why your toilet stinks

[FoxInTheFall]

Originally Posted by Sensfan

I have been using Thetford Toilet Seal Lubricant and Conditioner (non-petroleum) for about three years.

Petroleum based lubricant should never be used on toilet seals as it can cause them to swell, deform or degrade. Silicone grease (not spray) is the best thing to use as it's also water proof and an excellent lubricant. It's also safe to use on all rubber, foams and plastics.