Memory leaks in Particles

Item {
    id: root
    width: 1920
    height: 1080

    property variant particleEffect

   Component {
        id: comp

        Item {
            anchors.fill: parent

            ParticleEffect {
                anchors.fill: parent
            }

        }
    //}

    Timer {
        interval: 3000
        running: true
        repeat: true
        triggeredOnStart: true
        onTriggered: {
            if(particleEffect != null) {
                particleEffect.destroy()
                gc()
            }
            particleEffect = comp.createObject(root);
        }
    }
}