Because we know everything....;-)
It's either the one on the left or the right, depending on whether your
facing north or south. But if your facing east or west, then you can't get
there from here and will need to call a plumber. But if he's either
far-right or far-left politically oriented, then you're totally out of luck
and will need a priest - or is that a Rabbi ? Can't remember so I guess your
best bet is to go to a plumbing newsgroup (which I doubt there is) or ......
Go here.... http://www.gwsupplies.co.uk/plumbing/product.info.php?2576
Usually the inlet water (cold water) is the one you need to turn off and
depending on your local codes, it should be near the water heater. This is
made in the UK so I have no idea of what the codes are but judging from
where the water connections are on the tank - they are not like US at all.
They should certainly be marked. I would guess the blue one is the cold
water inlet connector and the other two are the hot-water drain and the
connector for the house plumbing.
Maybe you can search the web site and see if they have a manual.
Right up to here, this is the best possible answer and it is
absolutely correct. If the highly technical jargon used above is
beyond you, don't touch anything without the express instruction from
an on-site hot water/steam heating guy, who will tell what you can or
cannot touch/move or even look at without a union card. And Don
Luigi (AKA hitman Louie Two Toes) runs the union. Show some
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