And now we just have to wait for natural selection to take its course.
Where's the LIKE button!?!
K-Seal is the Devil as it lines the entire coolant system and will eventually cause all your rubber pipes to split. It also blocks the heater matrix up and can cause other problems. The only way to fully purge it from the coolant system is to replace everything.
Honestly, why they even sell this stuff anymore is beyond me especially when Forte's "Stop Leak" solutions are cheaper, safer, better to use as temporary measures.