It's a gamble. Much of the labour in changing a water pump is common to that of changing the timing belt. Therefore it is much cheaper to change the water pump and timing belt in one job than in two separate operations.

However, the water pump could carry on for many years without leaking so you could save yourself a few quid by not changing it.

Are you feeling lucky?

NB. It's worth pointing out that antifreeze is damaging to timing belts so if the pump seal leaks coolant onto the timing belt, you'll need a new belt as well as a water pump.

Mileage is 72k.

Speaking to a few Honda dealerships they all say the same, they have found over the years that the tensioners, pump etc just don't wear enough to justify changing them with the first belt change, not sure about the 2nd change though??