Hey everyone, this is probably in the realms of thick questions but hey, here goes.We've recently replaced a water pipe near our bathroom toilet, while checking the pipe was watertight my wife noticed a hissing noise coming from the water tank. To be honest it's inaudible with the tank top on (unless you're really listening for it) but with the lid off, fair play to her it's rather noticeable.I've got a video of it here and it appears to be from the contraption on the right.Is this normal or should I be concerned? via /r/DIY http://ift.tt/2ENN5eb
