I seem to be the only one in my home who hears it! I can hear what seems to be a constant trickling noise inside the pipes of the wall to the bathroom upstairs. Almost like the sound of water going down a rain gutter. It has been going on for a few weeks now. We recently replaced the full valve of the toilet which used to make a hissing sound. The hissing sound is gone and there are no leaks going into the toilet bowl. What could it possibly be? I checked under the townhome in the crawl space as well and could not see any water or hear it in the pipes down there. We are an outside unit. It is such a quiet constant noise that I am kept up, but my husband claims he cannot hear any noise. I would think with how much trickling it sounds like I would see some wet spots by now but I can't in the walls or the ceiling underneath. Please let me know what you think or advice you have. Thanks!

Hi, My property has a sprinkler system installed and the system is connected to the toilet in the en-suite I have had no end of issues with this, as when the toilet is flushed it will quite regularly trip the system and stops the toilet from flushing. I have also been finding it extremely difficult to find a sprinkler engineer to fix the issue I am now thinking of having the toilet disconnected from the sprinkler system and having it connected to the sink. A sprinkler engineer that I did find was going to sort this out for me but he his now not returning my calls, so I have given up hope with him. My question now is, would a general plumber be able to do this ? The sprinkler engineer did originally say that the sprinkler system would need to be drained and isolate the pump and tank and that the domestic and sprinkler feeds would need draining. I'm not sure if a plumber would know about the sprinkler feeds ? Any help would be greatly appreciated Thanks