What is the cooldown to use Silencer Resonating Chambers on the Plateu?

Question

In Roshamuul it is possible to use Silencer Resonating Chambers on the Silencer Plateau. Once 5 are used successfully a raid will start. There will be 4 waves of Silencers and a final 5th wave with Sights of Surrender. TibiaWiki estimates the cooldown to be 30 minutes but it is not confirmed.

What is the cooldown before this raid can be triggered again? Is it based on the time since the last Silencer Resonating Chamber was used successfully or do the previous creatures have to be killed first? Is it technically possible to activate 2 "raids" to have many creatures on the plateau?

Answer 1

 Cooldown is 30 minutes. After 30 minutes, you can use the Silencer Resonating Chamber again. Yes, this is based on the time since the last damper resonance chamber was successfully used, and it is technically possible to activate 2 raids.

Comments

Have you verified the 30 minutes yourself or have another source?

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Yes, I have checked it by myself.