I found my pool cleaner Polaris 360 working OK but checked the screw down pressure relief valve and it is leaking water despite how hard I turn it. I do not have the blue or red restrictor discs installed and the wheels are doing 24 revolutions per minute which I believe is slightly below the 28 to 36 as per the manual which I assume is the leak.

Should there be anything coming from that relief valve or have I possibly not tightened it enough - I do not want to break it.