Homemade heating mains reversible flusher

This is a quick video I’ve uploaded (I’m not a YouTuber) showing the Homemade heating mains flushing contraption I made. I’ve used L type valves which make it very quick and easy to reverse the direction of flow. I bought extra Adey quick couplers to connect to their flushing unit and manifolds. I’ve also made couplers with different attachments so it can be plumbed onto pipes, TRV’s and radiator tails. Please note: I’m not a plumber or heating professional.