cleaner time to check out the drain line so right here we have a drain line with a PE trap and a flush valve first thing I'm want to do is check this P trap it looks pretty nasty so I'm going to take a lot of times I like to leave a zip tie up here take the zip tie just kind of push everything in there this is pretty much the first place that anything is going to build up is this P trap right here if not it'll probably build up a little bit further down got some stuff knocked out I'm just going to take some water and I'm going to fill it up try and get some of that stuff out of there as long as you knock it Loose it'll float up pretty much clear itself out but knocking it Loose with a zip tie a brush whatever will be the best bet to clear out the original P trap at especially an air handler a lot of furnaces don't have them but an air handler is exactly where you want the P trap and you want to clear that out first let's flush this valve so this is a flush valve you can take a tank of nitrogen hose it is air compressor whatever the way it works is you turn the handle to where the arrow points away from the system undo that and hook up your hoses there is a shraer in here so you want to put your depressor on there it doesn't work if you turn the hose around I have my nitrogen set up on test so I just want to push as much pressure as possible going to shut it off a couple times play with it a little bit and you're good to go we are flushed turn this valve back to open or else the moment you start to produce water it will immediately shut the system off undo your hose and you're good to go if your drain line doesn't have a valve but it does have this fitting right here you're in luck this is called a union it is a way for you to access the drain line without having to cut it it has a rubber gasket in it to prevent water from coming out and it has of course the opening that allows you to flush or run a drain whatever you want to do inside the Union now for this setup we're going to need three things we're going to need a nozzle a cone some way to direct pressure we're going to need a bottle of water because we need to refill this PE trap after we flush it out and we're going to need a cap in order to put over this because once we push water this way we don't want a torrent of water to come right back up at our face when you're ready to flush pressurize yourself get your cone ready try and hold on to everything at the same time and blast it out