Hi,

Does anyone use these? We have our hot water set to 60C as I heard
this was the recommended temperature to kill off bugs in the cylinder.
It means that the hot tap can get uncomfortably hot. So I was
wondering about fitting one of these valves under the basin so that
the temperature at the tap is lower. Has anyone else done this? What
are your opinions?

I haven't checked the temperature of the water as I only have one of
those IR thermometers, bought for the black art of radiator balancing,
which I never managed to achieve! I don't think they will work on
water. Is this an excuse to buy a multimeter with temperature probe?!

TIA

"Fred" wrote in message
...
Hi,

Does anyone use these? We have our hot water set to 60C as I heard
this was the recommended temperature to kill off bugs in the cylinder.
It means that the hot tap can get uncomfortably hot. So I was
wondering about fitting one of these valves under the basin so that
the temperature at the tap is lower. Has anyone else done this? What
are your opinions?

I haven't checked the temperature of the water as I only have one of
those IR thermometers, bought for the black art of radiator balancing,
which I never managed to achieve! I don't think they will work on
water. Is this an excuse to buy a multimeter with temperature probe?!

TIA


I am not an expert but some thoughts that others may wish to develop:

1. Could you check the pipe temp near the tap with your i/r thermometer. It
should give a good reading - I think you need a black surface to be
accurate.

2. Bugs are more likely to grow in the cold header tank if you have one.

3. Legionella is spread by water mist. It is a respiratory disease.

4. If you have a concern that couldn't you raise the temp on a schedule -
say once a month?

On 12 June, 09:42, Fred wrote:
Hi,

Does anyone use these? We have our hot water set to 60C as I heard
this was the recommended temperature to kill off bugs in the cylinder.
It means that the hot tap can get uncomfortably hot. So I was
wondering about fitting one of these valves under the basin so that
the temperature at the tap is lower. Has anyone else done this? What
are your opinions?

I haven't checked the temperature of the water as I only have one of
those IR thermometers, bought for the black art of radiator balancing,
which I never managed to achieve! I don't think they will work on
water. Is this an excuse to buy a multimeter with temperature probe?!

TIA

Yes, it is done, regularly in OAP homes and hospitals. They usually
have
a fixed temp, but adjustable under a cover for when regulations
change !
Simon.

On Jun 12, 3:42*am, Fred wrote:
Hi,

Does anyone use these? We have our hot water set to 60C as I heard
this was the recommended temperature to kill off bugs in the cylinder.
It means that the hot tap can get uncomfortably hot. So I was
wondering about fitting one of these valves under the basin so that
the temperature at the tap is lower. Has anyone else done this? What
are your opinions?

I haven't checked the temperature of the water as I only have one of
those IR thermometers, bought for the black art of radiator balancing,
which I never managed to achieve! I don't think they will work on
water. Is this an excuse to buy a multimeter with temperature probe?!

TIA

How many cases of Legonaires have you heard about from your water, i
just keep mine hot enough to shower, more is a waste of money.
Probably the Gas company started it all, so they sell more gas.

"Fred" wrote in message
...
Hi,

Does anyone use these? We have our hot water set to 60C as I heard
this was the recommended temperature to kill off bugs in the cylinder.
It means that the hot tap can get uncomfortably hot. So I was
wondering about fitting one of these valves under the basin so that
the temperature at the tap is lower. Has anyone else done this? What
are your opinions?

I haven't checked the temperature of the water as I only have one of
those IR thermometers, bought for the black art of radiator balancing,
which I never managed to achieve! I don't think they will work on
water. Is this an excuse to buy a multimeter with temperature probe?!

TIA

Round here, by the time the hot tap is delivering hot, I've already washed
and gone. Are your pipes very short: or pre-heated?

;-)

S

"John" wrote in message
news:bYHQn.12446$Ha1.7251@hurricane...

"Fred" wrote in message
...
Hi,

Does anyone use these? We have our hot water set to 60C as I heard
this was the recommended temperature to kill off bugs in the cylinder.
It means that the hot tap can get uncomfortably hot. So I was
wondering about fitting one of these valves under the basin so that
the temperature at the tap is lower. Has anyone else done this? What
are your opinions?

I haven't checked the temperature of the water as I only have one of
those IR thermometers, bought for the black art of radiator balancing,
which I never managed to achieve! I don't think they will work on
water. Is this an excuse to buy a multimeter with temperature probe?!

TIA


I am not an expert but some thoughts that others may wish to develop:

1. Could you check the pipe temp near the tap with your i/r thermometer.
It should give a good reading - I think you need a black surface to be
accurate.

2. Bugs are more likely to grow in the cold header tank if you have one.

3. Legionella is spread by water mist. It is a respiratory disease.

4. If you have a concern that couldn't you raise the temp on a schedule -
say once a month?
Those red and yellow algae/bacteria that seem to specialise in rubber
showerhead parts don't appear to mind the heat at all!

S

On Sat, 12 Jun 2010 09:55:30 +0100, "John"
wrote:

1. Could you check the pipe temp near the tap with your i/r thermometer. It
should give a good reading - I think you need a black surface to be
accurate.

Good idea, thanks.

2. Bugs are more likely to grow in the cold header tank if you have one.

But the water goes from the header tank to the cylinder so I guess all
the bugs get killed there.

Fred wrote:
On Sat, 12 Jun 2010 09:55:30 +0100, "John"
wrote:

2. Bugs are more likely to grow in the cold header tank if you have one.

But the water goes from the header tank to the cylinder so I guess all
the bugs get killed there.

Doesn't some of the water go direct, and not via the HW system?

Andy

On Sat, 12 Jun 2010 16:36:08 +0100, "spamlet"
wrote:

Round here, by the time the hot tap is delivering hot, I've already washed
and gone. Are your pipes very short: or pre-heated?

I know your problem. The bathroom is just across the landing from the
airing cupboard and I have tried to lag all the pipes I can find but
even so it takes awhile for the water to run hot. But if someone has
run the bath, there's hot water sitting in the pipes ready and it is
very hot. The tap in the kitchen never gets warm because it is such a
long run and I think half of it is buried in the concrete floor;
running a new pipe is a job on my list.