question about Hot water heater recirculation system install

[Edwardjr]

I need to install a Watts hot water heater recirculator. In my setup it looks like I have two choices.

1. bend corrugated copper to attach to top of pump.
2. remove corrugated copper and sweat on new fittings.

Do I need a tool to bend the copper? if so, will it fit over the fip end ?