im adding a new sink , and put in copper pipes, on tv a couple days i saw that this give used copper pipes but for a gas stove, they connected it the stove and at the other end they put this thing that pumped 10lbs of pressure in the copper pipes to see if it hand any leaks,.,if it went down from 10lbs of pressure then there was a leak./whats that device called? and can you use it to check if my pipes leaks?
I take it you have no confidence in your soldering ability. Just go ahead and put the water to it . You will see if it leaks right away. You are trying to make a mountain out of a mole hill!!!
Wouldn't worry about it. City water pressure will be between 55 and 60 lbs gauge. Well will be a little lower, either way you will know quicly if you have a leak and where it is. If you have a leak shut your water off drain and fix. Save your money if you just added a sink, if you were testing a whole house then yes buy a gauge set but not for a small add on.
Schrader valve (3.99) and an air compressor/air tank (borrow one). pressurizes the pipes, you'll see the pressure go down if there is a leak. Be careful on older homes or fragile pipes! And don't forget - can't mix copper and iron pipes, need to use a dielectric fitting or sooner or later you'll develop pinhole leaks or worse.
