How to clean old trigger aler on graph

[pabloadmin]

Hi, i have a trigger on graph, but it was Acknowledged and didn't disapear from the graph.
Some body Know how clean the graph?, i use zabbix 1.8.8

Thank's

[frankymryao]

trigger on graph in my opinion is used to inform those who is watching the graph. No matter you ack or not, it would always show on graph.

[pabloadmin]

Yes, you are right, but is an old trigger and isn't correct.


thank's