Never use the Whirlpool bath and it's nowhere near.Do you not have one of those cheapy usb cameras you can stick through a spotlight hole to have a further nose ? whirlpool bath would be my guess !
I do have an endoscope camera.
In work typical.
I tried pulling out a complete light fitting but it's like on a spring. Came out so far. But need to be careful plasterboard still wet.