2003 Honda CRV Location of heater hoses, tools used, and cause of my leak?

2003 Honda CRV Location of heater hoses, tools used, and cause of my leak?

Sorry, no video of the actual hose replacement. I couldnt find a good angle to put the camera to record anything in progress.

Cold engine, I needed to use both my Corbin style hose clamp pliers (KD), cable style hose clamp pliers (Craftsman), and 90degree angle pliers (Sunex) to move the hose clamps off. I then used my radiator hose pick (Harbor Freight) and round hose pliers (Sunex) to pull off the hoses. A hose pinch off plier (KD) was used to temporarily stop the coolant from spilling all over until a drain pan was put under the car. I think I used a pair of needle nose (Channellock) and Duckbill (Craftsman) pliers to help spin one of the hose clamps around so that I could capture it with a hose clamp plier.