Hi, I need to add a couple of small rads to my system, so I need to
drain it down. The problem is that I dont know where the drain point
is. So I was just thinking that I could use the boiler side of the
fill loop and attach a hose to it to drain down?

Any ideas if this is OK?

Thanks

On Sat, 15 Sep 2007 06:19:17 -0700, ched999uk wrote:

Hi, I need to add a couple of small rads to my system, so I need to
drain it down. The problem is that I dont know where the drain point
is. So I was just thinking that I could use the boiler side of the
fill loop and attach a hose to it to drain down?

Any ideas if this is OK?

You have loads of problems.
1) There is a non return valve in the loop.
2) if you unscrew the NRV from the primary circuit you will get very wet.

If there system has genuinely not been fitted with a drain off point
(there are some like that, I meet a few every year) then you have to
add one.

The slickest method seems to be to add a washing machine feed point the
sort that penetrate the pipe when enough of the water is out you then cut
out the newly installed valve and add a real T and a real drain cock.




--
Ed Sirett - Property maintainer and registered gas fitter.
The FAQ for uk.diy is at http://www.diyfaq.org.uk
Gas fitting FAQ http://www.makewrite.demon.co.uk/GasFitting.html
Sealed CH FAQ http://www.makewrite.demon.co.uk/SealedCH.html
Choosing a Boiler FAQ http://www.makewrite.demon.co.uk/BoilerChoice.html

On Sat, 15 Sep 2007 14:06:44 +0000, Ed Sirett wrote:

If there system has genuinely not been fitted with a drain off point
(there are some like that, I meet a few every year) then you have to
add one.

The slickest method seems to be to add a washing machine feed point the
sort that penetrate the pipe when enough of the water is out you then cut
out the newly installed valve and add a real T and a real drain cock.

You can also get self-cutting drain-off cocks if you cba to replace it
with a real tee and DOC. Or drain off from a rad: turn off both valves,
loosen connection & drain rad, move valve away from rad if there's enough
play in the pipes (otherwise remove rad) and attach hose to valve and
drain off system.

--
John Stumbles

Xenophobia? - sounds a bit foreign to me.

On 16 Sep, 11:03, John Stumbles wrote:
On Sat, 15 Sep 2007 14:06:44 +0000, Ed Sirett wrote:
If there system has genuinely not been fitted with a drain off point
(there are some like that, I meet a few every year) then you have to
add one.

The slickest method seems to be to add a washing machine feed point the
sort that penetrate the pipe when enough of the water is out you then cut
out the newly installed valve and add a real T and a real drain cock.

You can also get self-cutting drain-off cocks if you cba to replace it
with a real tee and DOC. Or drain off from a rad: turn off both valves,
loosen connection & drain rad, move valve away from rad if there's enough
play in the pipes (otherwise remove rad) and attach hose to valve and
drain off system.

--
John Stumbles

Xenophobia? - sounds a bit foreign to me.

Thanks very much to both of you, very helpful. To be honest its
difficult to get at all the rads to check if they have a drain off as
I have holiday flats and rarely get chance to get in all the flats
other than to clean till November. But I have a couple of days this
week that I have access to the 2 flats that need rads for
accreditation. So the self cutting washing machine valve or the self
cutting drain are a perfect solution.
I just need to find a couple of rads that are only 300mm wide!!! The
shower rooms dont really need heating as they are en-suites but rules
are rules.
Thanks

On Mon, 17 Sep 2007 03:25:45 -0700, ched999uk wrote:

On 16 Sep, 11:03, John Stumbles wrote:
On Sat, 15 Sep 2007 14:06:44 +0000, Ed Sirett wrote:
If there system has genuinely not been fitted with a drain off point
(there are some like that, I meet a few every year) then you have to
add one.

The slickest method seems to be to add a washing machine feed point the
sort that penetrate the pipe when enough of the water is out you then cut
out the newly installed valve and add a real T and a real drain cock.

You can also get self-cutting drain-off cocks if you cba to replace it
with a real tee and DOC. Or drain off from a rad: turn off both valves,
loosen connection & drain rad, move valve away from rad if there's enough
play in the pipes (otherwise remove rad) and attach hose to valve and
drain off system.

--
John Stumbles

Xenophobia? - sounds a bit foreign to me.

Thanks very much to both of you, very helpful. To be honest its
difficult to get at all the rads to check if they have a drain off as
I have holiday flats and rarely get chance to get in all the flats
other than to clean till November. But I have a couple of days this
week that I have access to the 2 flats that need rads for
accreditation. So the self cutting washing machine valve or the self
cutting drain are a perfect solution.
I just need to find a couple of rads that are only 300mm wide!!! The
shower rooms dont really need heating as they are en-suites but rules
are rules.
Thanks

300 mmm wide should be available. Screwfix even.


--
Ed Sirett - Property maintainer and registered gas fitter.
The FAQ for uk.diy is at http://www.diyfaq.org.uk
Gas fitting FAQ http://www.makewrite.demon.co.uk/GasFitting.html
Sealed CH FAQ http://www.makewrite.demon.co.uk/SealedCH.html
Choosing a Boiler FAQ http://www.makewrite.demon.co.uk/BoilerChoice.html

On 17 Sep, 11:25, ched999uk wrote:
On 16 Sep, 11:03, John Stumbles wrote:





On Sat, 15 Sep 2007 14:06:44 +0000, Ed Sirett wrote:
If there system has genuinely not been fitted with a drain off point
(there are some like that, I meet a few every year) then you have to
add one.

The slickest method seems to be to add a washing machine feed point the
sort that penetrate the pipe when enough of the water is out you then cut
out the newly installed valve and add a real T and a real drain cock.

You can also get self-cutting drain-off cocks if you cba to replace it
with a real tee and DOC. Or drain off from a rad: turn off both valves,
loosen connection & drain rad, move valve away from rad if there's enough
play in the pipes (otherwise remove rad) and attach hose to valve and
drain off system.

--
John Stumbles

Xenophobia? - sounds a bit foreign to me.

Thanks very much to both of you, very helpful. To be honest its
difficult to get at all the rads to check if they have a drain off as
I have holiday flats and rarely get chance to get in all the flats
other than to clean till November. But I have a couple of days this
week that I have access to the 2 flats that need rads for
accreditation. So the self cutting washing machine valve or the self
cutting drain are a perfect solution.


Don't forget that the water could well have the same properties as
best quality ink! At least in it's ability to stain furnishings and
wall coverings.