Just finishing off adding a rad. and other jobs on the CH system, then do a
simple service on the boiler.

It's a Vaillant EcoMAX 824E, about 11 years old. The manual doesn't mention
any sort of treatment to put in to the system and the installers said that
it wasn't necessary, but there was a small amount of black stuff in the
rads (I took them outside and shook the ****e out of them). The drined of
water was clear and colourless.

Just wondering if there should be anything put in and, if so, what to use.

Also, I've had little luck in looking for a source of spares so don't want
to go too far as there's a major gasket that almost certainly won't survive
dismantling.

OK, 11 years of use is a goodly time, but it's off for 5 months a year and
v. little use of DHW so not much used by normal standards.

Any info. gratefully received.
--
Peter.
The gods will stay away
whilst religions hold sway

"PeterC" wrote in message
.. .
Just finishing off adding a rad. and other jobs on the CH system, then do
a
simple service on the boiler.

It's a Vaillant EcoMAX 824E, about 11 years old. The manual doesn't
mention
any sort of treatment to put in to the system and the installers said that
it wasn't necessary, but there was a small amount of black stuff in the
rads (I took them outside and shook the ****e out of them). The drined of
water was clear and colourless.

Just wondering if there should be anything put in and, if so, what to use.

Also, I've had little luck in looking for a source of spares so don't want
to go too far as there's a major gasket that almost certainly won't
survive
dismantling.

OK, 11 years of use is a goodly time, but it's off for 5 months a year and
v. little use of DHW so not much used by normal standards.

Any info. gratefully received.
--
Peter.
The gods will stay away
whilst religions hold sway

I always used an inhibiter in CHS in mine I used Fernox mb1 which is for
cast iron heat exchangers.
not sure whether he Vaillant is cast iron or copper, but get the proper
inhibiter to put in.
the system will run better, stops the boiler "kettleing" and longer for it,
as you should not get the black sludge formimg.

On 17 Aug, 10:41, "A Plumber" wrote:
"PeterC" wrote in message

.. .



Just finishing off adding a rad. and other jobs on the CH system, then do
a
simple service on the boiler.

It's a Vaillant EcoMAX 824E, about 11 years old. The manual doesn't
mention
any sort of treatment to put in to the system and the installers said that
it wasn't necessary, but there was a small amount of black stuff in the
rads (I took them outside and shook the ****e out of them). The drined of
water was clear and colourless.

Just wondering if there should be anything put in and, if so, what to use.

Also, I've had little luck in looking for a source of spares so don't want
to go too far as there's a major gasket that almost certainly won't
survive
dismantling.

OK, 11 years of use is a goodly time, but it's off for 5 months a year and
v. little use of DHW so not much used by normal standards.

Any info. gratefully received.
--
Peter.
The gods will stay away
whilst religions hold sway

I always used an inhibiter in CHS in mine I used Fernox mb1 which is for
cast iron heat exchangers.
not sure whether he Vaillant is cast iron or copper, but get the proper
inhibiter to put in.
the system will run better, stops the boiler "kettleing" and longer for it,
as you should not get the black sludge formimg.

Stainless steel heat exchanger in Vaillant

I asked Fernox what the difference is between Fernox Protector F1 and
MB-1 and this is what they said:

"Thank you for your email regarding the Fernox F1 and MB-1.



MB-1 is a product we have produced since the 1960’s and as such is
widely recognised by many in the heating industry. Fernox F1 and MB-1
are essentially the same. The F1 is a concentrated form of the MB-1,
thus less packaging and reduced shipment costs associated with a lower
volume. Fernox F1 and MB-1 are essentially the same in terms of metal
and scaling protection and life expectancy in use (i.e. 10 years).



We trust you will find this information of help and assistance."

Two Vaillant boilers in my family that I have done a little bit of
work, one has Sentinel X100 and was powerflushed with X800 and the
other has Fernox F-1 and was flushed with Fernox F-5.

In article
,
VAG_dude wrote:
Two Vaillant boilers in my family that I have done a little bit of
work, one has Sentinel X100 and was powerflushed with X800 and the
other has Fernox F-1 and was flushed with Fernox F-5.

If you've always used a decent inhibitor it shouldn't need a flushing
chemical as there should be nothing to flush. ;-)

--
*Welcome to **** Creek - sorry, we're out of paddles*

Dave Plowman London SW
To e-mail, change noise into sound.

On 18 Aug, 09:10, "Dave Plowman (News)" wrote:
In article
,
* *VAG_dude wrote:

Two Vaillant boilers in my family that I have done a little bit of
work, one has Sentinel X100 and was powerflushed with X800 and the
other has Fernox F-1 and was flushed with Fernox F-5.

If you've always used a decent inhibitor it shouldn't need a flushing
chemical as there should be nothing to flush. ;-)

Yep, however in my case the systems had not been protected for a few
years which is why they required flushing first before adding an
inhibitor.

On Tue, 17 Aug 2010 20:05:12 -0700 (PDT), VAG_dude wrote:

On 17 Aug, 10:41, "A Plumber" wrote:
"PeterC" wrote in message

.. .



Just finishing off adding a rad. and other jobs on the CH system, then do
a
simple service on the boiler.

It's a Vaillant EcoMAX 824E, about 11 years old. The manual doesn't
mention
any sort of treatment to put in to the system and the installers said that
it wasn't necessary, but there was a small amount of black stuff in the
rads (I took them outside and shook the ****e out of them). The drined of
water was clear and colourless.

Just wondering if there should be anything put in and, if so, what to use.

Also, I've had little luck in looking for a source of spares so don't want
to go too far as there's a major gasket that almost certainly won't
survive
dismantling.

OK, 11 years of use is a goodly time, but it's off for 5 months a year and
v. little use of DHW so not much used by normal standards.

Any info. gratefully received.
--
Peter.
The gods will stay away
whilst religions hold sway

I always used an inhibiter in CHS in mine I used Fernox mb1 which is for
cast iron heat exchangers.
not sure whether he Vaillant is cast iron or copper, but get the proper
inhibiter to put in.
the system will run better, stops the boiler "kettleing" and longer for it,
as you should not get the black sludge formimg.

Stainless steel heat exchanger in Vaillant

I asked Fernox what the difference is between Fernox Protector F1 and
MB-1 and this is what they said:

"Thank you for your email regarding the Fernox F1 and MB-1.

MB-1 is a product we have produced since the 1960¢s and as such is
widely recognised by many in the heating industry. Fernox F1 and MB-1
are essentially the same. The F1 is a concentrated form of the MB-1,
thus less packaging and reduced shipment costs associated with a lower
volume. Fernox F1 and MB-1 are essentially the same in terms of metal
and scaling protection and life expectancy in use (i.e. 10 years).

We trust you will find this information of help and assistance."

Two Vaillant boilers in my family that I have done a little bit of
work, one has Sentinel X100 and was powerflushed with X800 and the
other has Fernox F-1 and was flushed with Fernox F-5.

Useful stuff, thanks.

Bit of a problem flushing: the 2 drainage points have washers with about 3
- 4mm holes - water does little more than dribble out. I don't know if I
could remove the washers temporarily to get a decent flow.

The system's had 3 Bar air in it for 18 hours now (that was a bloody job!)
and the gauge is still dead on the mark - looking good.
--
Peter.
The gods will stay away
whilst religions hold sway

In article ,
PeterC wrote:
Just finishing off adding a rad. and other jobs on the CH system, then
do a simple service on the boiler.

It's a Vaillant EcoMAX 824E, about 11 years old. The manual doesn't
mention any sort of treatment to put in to the system and the installers
said that it wasn't necessary, but there was a small amount of black
stuff in the rads (I took them outside and shook the ****e out of them).
The drined of water was clear and colourless.

Just wondering if there should be anything put in and, if so, what to
use.

Also, I've had little luck in looking for a source of spares so don't
want to go too far as there's a major gasket that almost certainly won't
survive dismantling.

OK, 11 years of use is a goodly time, but it's off for 5 months a year
and v. little use of DHW so not much used by normal standards.

Any info. gratefully received.

I first installed my system some 30 years ago and have always used
inhibitor. Changing it every 5 years or so. Recently installed a new
boiler - old one still worked but wanted a more efficient one. All rads
original and have never given problems. Just about everyone I know has had
one or more rads replaced due to them rusting through - often in much less
time than this. Also, on the odd occasion I've removed one for decoration
etc, they've not been full of black gunge so often reported here.

I'm not surprised makers and installers don't 'recommend' inhibitor. After
all they want to sell you a new system as soon after the existing one as
possible.

FWIW, all cars use some form of inhibitor in their cooling systems too. In
the days when they didn't you'd get things like blocked rads...

--
*To be intoxicated is to feel sophisticated, but not be able to say it.

Dave Plowman London SW
To e-mail, change noise into sound.

On Tue, 17 Aug 2010 10:57:09 +0100, Dave Plowman (News) wrote:

In article ,
PeterC wrote:
Just finishing off adding a rad. and other jobs on the CH system, then
do a simple service on the boiler.

It's a Vaillant EcoMAX 824E, about 11 years old. The manual doesn't
mention any sort of treatment to put in to the system and the installers
said that it wasn't necessary, but there was a small amount of black
stuff in the rads (I took them outside and shook the ****e out of them).
The drined of water was clear and colourless.

Just wondering if there should be anything put in and, if so, what to
use.

Also, I've had little luck in looking for a source of spares so don't
want to go too far as there's a major gasket that almost certainly won't
survive dismantling.

OK, 11 years of use is a goodly time, but it's off for 5 months a year
and v. little use of DHW so not much used by normal standards.

Any info. gratefully received.

I first installed my system some 30 years ago and have always used
inhibitor. Changing it every 5 years or so. Recently installed a new
boiler - old one still worked but wanted a more efficient one. All rads
original and have never given problems. Just about everyone I know has had
one or more rads replaced due to them rusting through - often in much less
time than this. Also, on the odd occasion I've removed one for decoration
etc, they've not been full of black gunge so often reported here.

I'm not surprised makers and installers don't 'recommend' inhibitor. After
all they want to sell you a new system as soon after the existing one as
possible.

FWIW, all cars use some form of inhibitor in their cooling systems too. In
the days when they didn't you'd get things like blocked rads...

Looking at Toolstation's site (need to go there tomorrow to take something
back) and came across CalChem. I wondered if that'd be any good. The home
site is
http://www.calmagltd.com/calchem

Seems almost too good to be true.
--
Peter.
The gods will stay away
whilst religions hold sway