Smoke test

[Lighty69]

Does anyone in the north west of England have a smoke test machine I could have a borrow of. I’m trying to track down boost leak on my 2.7t and I’m at a point where I think I need to smoke test it, really don’t fancy paying 60-70 quid for something I’ll likely not use again in many years haha
Cheers
Also anyone got a known working N75 valve about for sale