On 01/05/19 07:54, harry wrote:
On Tuesday, 30 April 2019 22:18:30 UTC+1, Fredxx wrote:
On 30/04/2019 22:02, ss wrote:
I am refurbishing the bathroom but getting a plumber to disconnect water
, I will then tile walls & floor remove sanitry ware and replace.
plumber has said that the only thing the loft water tank is feeding is
the cold water for the bathroom sink as I have a combi boiler (mains feed)
So, he is going to bypass the loft water tank and make it obsolete.
Does this sound the correct thing to do?

It is normal for mains to feed a wash basin.

The removal of the tank and its supply can only make your system more
reliable.

Combi boilers are more efficient in energy use than the traditional system of stored hot water.
There are no other benefits.

Not quite true. That float valve in the tank might one day decide to to
drive you mad with water hammer, which will almost certainly not be
fixed until you change the mains supply flow rate (if you can actually
move the stopcock...).

They are more expensive to install and maintain and less reliable.
They preclude solar hot water generation as storage is needed.
If you have an existing traditional system, probably best retained and maintained in the longer term.

Definitely true if the boiler is showing its age. It will eventually
fail at the start of a holiday weekend when you won't be able to get it
fixed. Only those with an immersion heater in the tank will be able to
get some nice hot water for a shower or bath.

--

Jeff