LeakTronics delivers a Pressure Testing Kit that includes the Pressure Rig that professionals use in the Pro Complete Leak Detection Kit.
Using the included Injection Rig and an assortment of plugs that allow you to isolate the line you’re testing, you can set up and prepare to get the job done in minutes. It is delivered in a convenient water resistant carrying bag to help keep your necessary gear together.
When you pressure test a pipe, it’s done with water only (as seen in the video below). By isolating the pipe and injecting 7 – 10 lbs. of water in the pipe, you watch the pressure gauge and see the rate at which it is losing pressure. If it isn’t dropping on the gauge, GREAT! However, if it is; you will follow up with your listening equipment and air injection find the leak.
When you test to find the leak in a line, you keep that line isolated and inject both air and water into the line. For a return line on a pool, inject water at 7 to 10 lbs of pressure, then inject controlled bursts of air into the line from its lowest point. If the equipment is higher than the pool, we would inject into a return in the pool – that return being the lower point of the line. Starting by the equipment, at the farthest point on the line away from the Pressure Rig, you work back from the equipment, listening along the line with your Soil Probe or DeckPlate, for the boiling sound made by the air escaping the line through the crack. This method allows you to pinpoint where the pipe needs repair.
It is the most non-invasive method for finding the leak with extreme accuracy.
See a video below on Proper Pressure Testing Techniques using the Pressure Test Kit.