Pressure testing plumbing supply lines is one of the most difficult property preservation repairs to verify. Unless, of course, you redo every single pressure test right after your crew or subcontractor gets finished. It amazes me that most licensed plumbers either don’t know how to conduct a pressure test to the plumbing supply lines using an air compressor or will do it wrong. Well a few years ago out of sheer frustration, I designed a quick little set of instructions with a checklist that has been working ever since. What’s even better is that these instructions are so very straight and to the point that I can now send someone who doesn’t normally do plumbing work for me to conduct a pressure test and I will have all the correct photos and end result that I was looking for, every single time.
The first thing I put together was a step by step checklist that clearly describes exactly how I require them to complete the process, so that we get the same end result every single time. My instructions are very specific and they are based on what I learned from hundreds of previously completed pressure tests. My checklist starts them off at the water meter, then on to the water heater, then the laundry faucet and so on until all valves have been opened and everything is set up and ready to pressurize. The second part of my process was something I thought up to stop certain people from trying to “cheat” or cut corners during the pressure tests they completed for me. So once they have everything set up and they have pressurized the supply lines with air, they are required to take a photo of both the pressure gauge and their cell phone in the same frame. Then they take a second photo the same way at least 30 minutes later. This is my proof that gets sent to my clients, showing them that the system held pressure for a half hour. Since implementing this procedure, I have not gotten charged back for any of these. There’s even been a few times where a leak was found at a later date but because I had this proof, I was in the clear.