My new kitchen was installed some time ago by a well known firm. My dishwasher is connected to an unsupported 15" spur which comes from a cold water pipe via a soldered T junction. It's quite difficult and a stretch to get to and I could only use one hand when screwing in the cold water feed pipe of a new dishwasher. I couldn't help wiggling the spur. Will this wiggling about a bit weaken the T joint? And if so would it be slight leak or a clean break? Bear with me I'm a natural worrier.