Originally Posted by tiredofleaks
@ HomeRepairGuy, I have most definitely already shut off that valve. I had tried to isolate which section might be leaking by turning off all the inside hot water cutoff valves but the water was still flowing. That's why I believe it's the main hot water line coming in. It's no more than 10 feet from the hot water tank to the point of entry.
How long has been since you fixed the leak with aquapex & have you had more? Can you elaborate more on the Uponer Aquapex?
I fixed our leak in Dec 2010. No more leaks and, even though our leak was slow, our water usage went down noticeably. Our electric bill went down about $20 per month.
The Uponor PEX system uses the expansion method to connect joints. A PEX ring is slid over the end of the PEX and the tubing and ring are expanded using a special tool. Then both are pushed on the fitting and both contract due to the PEX memory. I chose this PEX system since it does not require any go-no/go checks using a gauge and seemed the most foolproof for a diy'er.
Since the compression ring go-no/go method depends on the gauge to fit by thousands of an inch, it's recommended to only use PEX tubing, fittings, compression rings and compression tool from the same manufacturer. As opposed to buying everything separately depending on price, although some diy'ers have done this (on other websites) and not experienced any leaks, at least at the time they posted.
The Uponor/Wirsbo expansion tool is more expensive (bought mine for $289 at pexsupply.com) but that cost is nothing compared to hiring a pro to do the work. I'll keep my tool forever but some folks have sold their tool on ebay and recovered most of their investment.