Is it worth doing a 'Pipe Leak Detection' PhD (industrywise)? I have been offered a PhD opportunity in a UK university and the topic is 'Pipe Leak Detection (using acoustic waves)'. 

My question is, is it worth doing a PhD in this area considering the industrial opportunities available for such area of expertise? 

** the research is co-funded by the UK Water Industry Research (UKWIR), but I am not sure (at the moment) about the possibility of joining them after the PhD. 

Could someone with relevent expertise or someone working in the field advice me or drop some comments. I really appreciate it, thanks in advance for all.
I think it sounds awesome.  Huge connection to industry, society.  Both directly with the method and then tangentially with pipes in general (water, oil, gas, sewage).  The basic things you do in acoustics, mechanics, fluid flow will be good training also. 

And then the integrative learnings from putting a "fancy" technique onto a basic problem.  And this is whether it "works" or not (in terms of physical results or economic feasibility).  For you, it's all upside in the learning and the connections.

Jump on that thing.  Like yesterday!