drive belt replacement and/or water pump replacement

[sociolog]

Dear all,

My Toyota Yaris 2001 has 75 000km and I' m thinking about drive belt replacement, but I'm little confused because don't know should I change the water pump as well?

For example when I changed drive belt on my Skoda Felicia 1997 I had to change with it the water pump and the pulley as well. The reason for this complete change was that the new drive belt can tighten the old water pump more firmly and that could lead to leaking.

So is t same with Toyota Yaris? I found the drive belt replacement procedure on this forum and I find it very useful but nobody mentions anything about replacement of waterpump as well.

Please tell me is it ok that I just replace the drive belt or ought I to replace the waterpump with it?

Thank yo very much in advance!