Water tank in loft


R

Rob Meade

Hi all,

I dont confess to be an expert in this area - hence my question - thanks for
any help you can offer.

I am the tennent of a council owned property. I have floored the loft,
added power and lighting and use it as an office. I will add putting up
some shelves tomorrow above a large water tank and a series of pipes.

The tank (one large round and a smaller rectangular one) are directly above
our airing cupboard which contains the hotwater tank.

The smaller of the 2 tanks is covered, and both have a padded jacket around
the outside, I'm assuming this is to protect from frost/cold etc..

My question is regarding the large round tank (which starts to fill up when
you pull the flush on the loo and the like, it doesn't currently have a
lid/cover, I thought that when I drill into the brickwork tomorrow I should
obviously cover it, but then I wondered why it doesn't already have one?

The bottom of the tank has quite a lot of 'crap' in it, in my limited
knowledge I was under the impression that our 'drinking' water comes into
the house directly from the pipes outside in the street and doesn't go
through this tank, therefore the stuff inside it would not be a problem. I
think it would be better covered with a proper lid but I wanted to check
that there wasn't a 'reason' why it might not be covered, ie, should air be
able to get to it more freely? I guess its used to top up the central
heating/hot water tank and for the toilet - but I dont really know.

Sorry this is lengthly - difficult to explain when not an expert and when
you can't display a diagram!

Thanks again for any help.

Regards

Rob
 
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R

Rob Meade

...I should have mentioned this, the arm with the float on the end has been
bent in the past, it doesn't look in good nick, and the valve that lets the
water into the tank drips (pretty much continuously, but obviously not
enough to make it overflow) - should I invest in a new arm for this? Are
they easy to fit - I guess I should turn the water off from the stop cock in
the garden before messing with it...

Again, any advice appreciated.

Regards

Rob
 
J

John Gould

Hi Rob, the small rect tank is the boiler expansion/ feed tank and seems to
be in good order so leave it be.

The large tank is most certainly the cold water storage/expansion tank to
the hot water cylinder below and also most likely the cold water feed to
bath, wc and basin. This should be covered at all times to prevent
contamination.(you probably clean your teeth in bathroom basin!!!) Just be
sure that when you cover it that the pipe that comes up and over the top of
the tank is not blocked in any way and is able to discharge into the tank.

Hope this helps, John.
 
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R

Rob Meade

...
Hi Rob, the small rect tank is the boiler expansion/ feed tank and seems to
be in good order so leave it be.
Hi John, many thanks for your reply. I shall leave that one be!
This should be covered at all times to prevent
contamination.
As I suspected!
(you probably clean your teeth in bathroom basin!!!)
hmm...nice!

Just be sure that when you cover it that the pipe that comes up and over the top of
the tank is not blocked in any way and is able to discharge into the tank.
I was going to mention that pipe in my posting, but felt it was complex
enough :eek:)
Hope this helps, John.
It does indeed - thank you - would you say that it was worth cleaning the
out tub out / replacing it? The water in it is clear - for sure, there's
what I can only assume is limescale around the top of the water level -
approximately 2 inches above the water level all the way around (its
obviously been like this for a while!)...there are also flakes of limescale
in the bottom of the tank and a brownish sludge (not very thick it seems,
and not completely covering the bottom of the tank - it seems the force of
it filling it up disturbs the settlement).

I can only see one pipe joining into the tank at bottom which definately
goes down to the tank in the airing cupboard...I'm hoping that it doesn't
also do the bath/sink in the bathroom but will check this evening.

Any advice on whether the tank should be cleaned/replaced would be
beneficial - as there's no "filter" or "gauze" over the joining pipe at the
bottom of the tank it would be plausible for that stuff in the tank to get
into the hot water tank - it probably already has - council house etc -
1930's/40's - and that probably isn't overly effecient.

Kind regards

Rob
 

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