The wax ring seal around your toilet keeps water from leaking out of the toilet as water moves from the bowl to the drain pipes. The wax rings usually last 20 years or more before beginning to break down. However, if you notice water beginning to pool around your toilet unexpectedly, you should inspect this wax ring seal part and look to replace it if it has signs of defect.
PEX tubing is generally a much better solution than copper for most, if not all, plumbing systems. PEX tubing is more resistant to failing or breaking as a result of freezing temperatures, and PEX is cheaper because it takes less labor to install. One of the few downsides to PEX tubing is that it is much more susceptible to damage from rodents. So if your application is in an area known to have rodent issues, we wouldn’t recommend PEX in that situation.
