I have a condensate pump attached to a valiant combi boiler with the usual pvc pipe turning into it (removed in picture, but works fine going into the point behind the copper pipe here), with the also normal outflow clear pipe also working fine.
Yet I have also this strange (and heavily crystallised) piece running into it from what I think is the overflow pipe of the boiler. What is it? A steam trap? Does it need replacing? Feel like I've googled everything and can't even find something remotely like it.