I wasn't really referring to leaking at the connections. The check valve itself will leak sometimes. If that valve sticks, which they can and will, sometimes you might have more water than you want in your cabinet. Most times, you'll just see a few drips. Every one I've owned has failed, thus removing all of them. If you're going to leave it in, just make sure you run and check it as soon as you start the water to it. Doesn't take long to flood under your bathroom vanity. Speaking from experience with these things.
John and Rebecca Dickson
Emma-7 / Little John-5 / Iva-1
Full Timing Again, Rev B
2013 Ford F-350 Lariat CC LB PSD
2015 SOB TT - With OC's Awning Poles (#8)
At least in Heaven, RVs will be perfect, and I won't have to keep fixing them.