Is this setup correct ?

Hi everyone, I just bought a house with a pool and I’m trying to get the heating system to work. After a bit of troubleshooting there is hot water coming to/from the heat exhanger so I reckon that’s ok for that part but the temperature of the water in the pool won’t rise the slightest even after a whole day. My next guess would be an improper setup of the bypass valves but if I’m not wrong on how those valves work it should be in a « 100% of the water goes through the heat exchanger » mode. And yes the pump is running, kinda hard to tell what path the water is taking by feeling the pipes because the pressure is not that high and the whole thing is rumbling due to the filtering and heating systems running.. Thanks !

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