Heater Hose Leak

[Bob2C]

How much time? Year of rig? Looks rusty. How good is the rest of the coolant? Dirty? Ever flushed the coolant?

I have to say, that if you have never flushed this or added just water at one time or another instead of a 50/50 mix, you MAY have contributed to this. Maybe not but answer will clear some of this up.

2018 with 41k miles. Rest of the coolant is fine. Never flushed. Original owner.