okay if you have a look in this drain
you can see the situation now if you
decide this little problem caustic soda
that's all you need
drop a caustic soda down there which
we'll be doing in a minute and we'll
show you but remember
read the instructions carefully okay
okay there's a drink
we've toured a caustic soda down in it
and we're waiting for it to come to the
boil well at the moment nothing's
happening so I'm gonna sort of cuz I
can't stand there all day waiting on
this and hopefully by tomorrow it should
have clear okay good luck
okay here you go
there's a drain as you can see it's all
clear just a couple of hours didn't keep
check on it just let the after I lost
spoke to you and then you can see it's
done the job okay no problemo