brazing
A compression test will determine which cylinder(s) are at fault.
I think I have a water leak in my basement. What are some ways to detect and repair the leak?
You have a vacuum leak in the fan control system somewhere... not easy to locate the leak
There is a leak in the rear lines running to the back.
If your air condition unit is leaking you can call a local mechanic who specializes in that or a company. One hour heating and air condition is a great solution and they have reasonable rates.
Have a shop perform a leak test with a halogen detector.
detect nytrogen
Pressure test system and watch for leak
system has a leak and is low on refrigerant or air flow is restricted by a dirty filter or coils
Leak detection dye can be purchased at any number of pool repair/maintenance companies/websites; it can also be found on eBay. There is no powder you can put into a swimming pool to detect a leak.
used to detect and identify the presence of liquid chemical agents