Timing chain & water pump replacement simultaneously on 2000 Toyota Corolla

The dealer told me that while the mechanic(s) were in the area for replacing the timing chain that the water pump should be replaced as well. Does this make, model and year of car have problems with its water pump? Should I have both done at the same time (it's about 2x the cost)?

Asked by for the 2000 Toyota Corolla
Replacing the timing chain is approximately a 4.4 hour job. The water pump is not driven by the timing chain on this engine but it is advisable to replace the water pump if you plan on keeping the car long term. It is right there when the chain is being replaced and the labor to do so at this time is minimal.
Hi,good friend, I come from China. though,we are a professional manufacturer for timing chain,we don't know how to replace it.I hope that we could chat with you.