good afternoon YouTube so I'm gonna be using my new utility sink to help flush the tankless water
heater so the idea is you want to circulate a cleaning solution or descaling solution like
white vinegar through the heater for about 45 minutes to an hour and you do that by using a
pump in a bucket so I've got my vinegar in the bucket got the pump in there and according to
the Takagi instructions first thing I've got to do is run the hot water for about two minutes
here okay it's been about two minutes and the instructions are oh shut off the water okay
now with the power shut off you close your your service port so this shuts off the cold and hot
water and you need to pop the pressure relief valve here a little bit of water dripping out
there and then you get your service ports here a little bit of water in there so then here is
my almost free water heater cleaning kit this is these are the old hot and cold water lines
that used to run to the clothes washer and so I've just replaced the washers inside and then
fitted them with some right angle adapters here just so they go on a little easier so now I can
open the hot water there let that water drain out I'm not gonna do the same with the cold here
yeah that's right angle adapters are nice they're a lot easier to work with than just your neural
the hose fitting the open hold here just drain the drain the water out of the heater and I wanted to
check the filter here I saw one video that said you should check this just to see see how the
filter is looking there so that's looking pretty good you want to do the same flow direction as the
heater would work so I have my cold water pipe here is going to hook up to the pump outlet so
let me screw that on there so I hook up my pump so the pumps gonna pump vinegar up the hose into the
cold water side it'll go through that filter screen to catch any scale and whatnot that
might get sucked up and then it'll circulate through the heater core and then come out the
hot water and the important thing you want to do is this is the hot line right here run that back
into your bucket because what you're gonna do is circulate the vinegar up and then it'll run back
okay we've got all the hoses hooked up and there we go there's our vinegar coming through let me
check the time here about 5:30 in the afternoon so I'm gonna run this till about quarter after
6:00 and let's see what it looks like and you can see it's it's actually getting some crud out of
there Wow once a year is probably a good time to do that flush so anyway there we go I'll bring
you back in about 45 minutes and we'll see what the vinegar looks like there okay YouTube's been
about 45 minutes shutoff pump here and there we're draining out the water pump gets a little bit warm
I've never run it this long and it's a pretty hot day today now what you're supposed to do is
disconnect this I think I'll try to move this off to the side and the next thing you're supposed to
do is run cold water through the heater and since my closet has a hose thread right on the end I'm
just gonna run this go we're running the cold water through there to flush out the vinegar so
you're supposed to let that go a few minutes see I gotta get the pump out of here I'll set it off to
the side and let it dry a little bit I think that should be good so I'm gonna shut the cold water
off that's flushed through the heater a couple of times and we'll take this off the water drain out
of there and then we go up and basically reverse with all the valves here yeah so you close this
one here close this one here that shuts off the two service ports there's the hot there's the
coal back open and I can remove the lines here caps back on the hot there is the hot line yeah
these are really nice I'll put a link to these I pick these up off of Amazon and heaven those
tabs on there makes it really easy and having the right angle okay YouTube and one thing I forgot to
do was to check the inlet filter and you can see it definitely picked up a lot of crud in there it
was pretty clean before but it got a rinse down out and they do that here you definitely generate
a lot of crud all the stead of intake comes out of descaling it ends up back in here so you got
to clean this out afterwards good idea to check it beforehand but definitely check it afterwards
that was definitely plugged up I might give it one more rinse so that just screws in right up
next to the cold water valve there her cold water pipe and the last thing to do is plug the heater
back in and there we go it's booting back up so no error codes all zeros and it's back to sleep
so there we go we got the water heater flushed so I set up a reminder in my calendar that every May
I'm supposed to flush this water heater no problem is it's June because I had to get the sink put in
place but that was the main reason I wanted a sink here was for that water heater because if I have
to do this every year now I don't make much of a mess you know just water in the sink and that'll
all dry out so yeah vinegar so let the pump dry out but that's a nice thing I can keep everything
here and the sink sinks big enough I can have the pump the bucket the hoses do all the flushing that
is a successful result in my book so now I know how to do flushing the heater I can now clear the
reminder in my calendar from this year and next year in May I will get another reminder to come
out here and do the same thing again but yeah seems to work really well so I think I've got
hot water again and the heaters good for another year so I just wanted to show you the descaling
process on the Takagi tankless water heater that was the first big project in the new utility sink
so I think everything passed with flying colors so if you have any questions about the flushing
descaling procedure post up in the comment section below and I'll put some of the other videos over
here on the left side you might be interested in those and as always thanks for watching