Bathtub pipe work done by companies own fitters, looks dodgy.
I had a new bathtub and sink installed 9 months ago by a well known company. Every time I drain the sink I get gargling noises coming from the bathtub. This also happens the other way around. Looking underneath the bath, the pipework angle looks correct for the water to flow towards the outlet/vent pipe. My question is, should the pipe have an upward bend leading out of the wall? See photo.
I had a new bathtub and sink installed 9 months ago by a well known company. Every time I drain the sink I get gargling noises coming from the bathtub. This also happens the other way around. Looking underneath the bath, the pipework angle looks correct for the water to flow towards the outlet/vent pipe. My question is, should the pipe have an upward bend leading out of the wall? See photo.