Hi. So we had a problem with the pump on the boiler feeding our underfloor heating system. As a result I had the chance to have a careful look at the manifold and I’m concerned that it was actually plumbed up incorrectly. Now it has been running for a couple of years and broadly working but I am concerned whether the wrong flow direction could have implications as to how it is balanced not to mention the flowmeters and temperature gauge being non-functional. We have had challenges getting the rooms appropriately adjusted in spite of the remote stats. Flow is coming in at the bottom and the return is via the top red manifold. Photos attached any ideas appreciated.