I'm Roger Bacon with RGB Renovations, and we're going to fix a leak under our sink. If you've got regular pipes like this and they're more than a couple years old you could easily have some leaks. This one has got a small drip right here. If we've tight, we've tightened it already and we can't quite stop the leak. So, let's take that thing apart and see what's wrong. Take your wrench and loosen this thing, sometimes you have to take a couple of these neuraled plastic nuts off to get the pipe to come loose. Now, you can really see we've got a leak now. Dump out the water and take a look at this little gasket right here, sometimes this one is getting old and cracked. This is a small plastic gasket that's getting cracked up, we're going to just replace that one, we're going to replace all these little gaskets. I think we can reuse the neuraled fittings that screwed them together, sometimes you have to put all new pipes in. These are plastic, they also make metal ones, plastic ones are easy to work with and very inexpensive, certainly doesn't pay to mess around, get new pipes if you need them. Leaks under the sink are bad news. Okay, we've got our new plastic washers, they have a special shape to them, a cone shape goes in with a neuraled ring on one side then our gasket on the next side with it's little pointy shape facing the ceiling fitting on its other side. So we've got two of those, we've got a plastic ring here that goes up on this and yet another small ceiling washer that goes in there. We've got this fitting, we've got this fitting, now we're going to put our pipes back together. If we didn't change them they should all fit, tuck that little gasket in there and start tightening it down. Hand tight it first, we'll see how that works. Grab a hold of it, it's a little shaky. Let's put our wrench on it, we've got an adjustable water pump plier's wrench, you should have this in your tool kit anyway. Tighten that thing down, you might as well tighten them all down since we're here, you never know what's going to leak next. Now that looks good, now we turn on the water and check for leaks. I like to fill up the sink extra full and then drain it all at once to simulate oh say pouring a pan of water from your pasta down there so you get a big load of water all flowing at once, maybe even turn on the garbage disposal for a second, let that water flow, check for leaks with a flashlight. Looks good this time, I'm Roger Bacon and that's how you repair a leak under your kitchen sink.