im not gonna flush the system-because of the reasons you mentioned. i dont want to release all sorts of "hidded ghosts" in the cooling system. i was looking for a solution that will enable me to flush the heater core without flushing the entire system.

2001 sporty. 4 inch lift+ body lift-front lovlells coils+extended forks. reat tj. monroe shocks. full skid plate, auxilary fan. external oil cooler. maxxis 8060 235/75 R15 tires on american racing wheels. trackfinder rear diff lock.
http://www.cardomain.com/ride/3948684/2001-kia-sportage