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Combies , corgo gas fitters, rads and stuff (bit i forgot) |
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| message from Andrew Welham on 16 May 2004 |
Dear all
This is the bit i forgot.
Following on from my last post. One fitter wants to remove my cold water
tank in the loft. Is this correct (standard practice)? Apparently it is
part of the installation
Andrew
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| BigWallop replied to Andrew Welham on 16 May 2004 |
You won't need the old storage tank if you're having all the water taken
from the mains supply. Is this the way the fitter is going with the
installation ? Or is it that the tank to be removed is the old header tank
from a previous conventional boiler ?
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| Andrew Welham replied to BigWallop on 16 May 2004 |
The fitter has suggested removing the main water taken as well as the
old header tank. I completely undertand the header tank, just the large
water is the bit thats confusing me. I'm sure these large water main
water tanks were not only fitted for central heating reasons only. Thats
why that removal part is confusing me.
Andrew
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| BigWallop replied to Andrew Welham on 16 May 2004 |
If you're having the whole house plumbed on to the mains water supply, both
hot and cold water, then the old storage tank will be obsolete. Rather
than leave it empty in the loft for things to grow in it's best to have it
removed.
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| Andrew Welham replied to BigWallop on 16 May 2004 |
Thanks for the info, just seemed strange as only of of the gas fitters
had suggested this. I take it then when combi systems are installed
generally the the main cold water tank is removed.
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| BigWallop replied to Andrew Welham on 16 May 2004 |
<<<snipped>>>
The tank isn't removed on all of these installations. Sometimes the cold
water is left on the tank feed to allow you to have water if the mains
bursts in the street, but this is becoming a very rare occurance these
days. The water supply from the mains is also generally cleaner than water
stored in a tank, so health wise as well, for drinking and washing, it is
better to draw directly from the mains supply. You should get faster
filling of the bath and sink when the water is drawn from the mains supply
as well.
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| Dave Plowman replied to BigWallop on 17 May 2004 |
Only on a very poor storage system where the tank is just above the bath.
If it's in the roof void above the bathroom - or higher - and the feeds to
the bath are in 22mm, very few mains systems will beat it. Or even come
close.
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| IMM replied to BigWallop on 17 May 2004 |
If they didn't suggest this then they are cowboys.
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| Ed Sirett replied to IMM on 17 May 2004 |
Indeed, but the arguments for and against are not 'an open and shut case'
for every installation. However customer preferences make an important
part of the choice.
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| IMM replied to Ed Sirett on 17 May 2004 |
The installation id crap. they didn't even suggest taking the tank out.
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| Dave Plowman replied to IMM on 17 May 2004 |
If the tank is in good condition and not taking up valuable space, there's
a lot to be said for using it for loo flushing water and also the cold
feed to the bath.
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| BillV replied to BigWallop on 16 May 2004 |
Beware though as all the water taps (except the kitchen sink cold ) and
toilet valves etc will currently be suitable for LOW pressure. This can
cause problems. They may not seal properly and the pressure may be too high
when they are directly on the mains.
The bath will certainly fill quicker with cold water but most people like
theirs hot and that would depend on the power of the combi.
Taking out the loft cold water supply is irrelevant to the fitting of a
combi boiler but it is often done.
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| Andy Hall replied to Andrew Welham on 16 May 2004 |
You don't have to remove it. It's more work to do so some have left it
out.
Once it is disconnected, it is a very easy DIY job to remove it if you
want the space.
.andy
To email, substitute .nospam with .gl
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| Andrew Welham replied to Andy Hall on 17 May 2004 |
Thanks for the comments I had forgotten about the effects on other
devices in the house, especially the toilet. Lucky i fitted a high
pressure valve a few months ago.
Andrew
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| TheScullster replied to Andrew Welham on 17 May 2004 |
I was going to mention showers as well.
You may have some fed off the low pressure water.
But if you are looking at direct fed hot water, I expect you'll have those
covered.
Phil
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| Lobster replied to Andy Hall on 17 May 2004 |
Or not... in my case there's an ancient, empty, obsolete cold water
tank up there which is substantially larger than the access hatch to
the roof space (which presumably must have been fitted after the tank
was installed); it weighs a ton and would need a lot of work to chop
it up into sufficiently small bits to bring down! It's causing me no
problems, so up there it stays.
If I'd been having a new installation which had made this tank
redundant, I would certainly at least expect the installers to provide
quotes with and without allowing for removal of said tank, given the
amount of work involved, rather than just going ahead.
David
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| Andy R replied to Andrew Welham on 17 May 2004 |
Unless you've got a mains water supply that can deliver plenty of water I
suggest keeping the cold water tank for flushing loos, supplying the washing
machine, dishwasher, handbasin in downstairs loo etc. IMHO you simply can't
get enough water through a 15mm pipe to supply a house without some sort of
water storage system (unless you've only got one bathroom and a small
family).
Rgds
Andy R
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Archived message: Combies , corgo gas fitters, rads and stuff (bit i forgot) (UK DIY House Renovation)
