corrosion

[Softus]

softass ,you must have nothing to do to make up such a lengthy fantasy.

Well, let's see - it's all relative, don't you think?

For example, you appear to have enough time to spend it thinking about an utterly implausible myth, and to talk to your boss about it, and to create a topic about it; to say nothing of the subtle and yet complex changes to my user name.

I, however, spent about as long writing that post as a smoker would spend standing outside the front door of his/her office building, shivering, several times a day, or about 1/15th of the time that someone who follows Eastenders spends in front of the TV each week, or about 1/20th of the time that a football fan spends following his favourite team each week.

So, in terms of having an unproductive hobby, who's really wasting their time?

 

[chrishutt]

And softus has produced one of the all-time great DIYnot answers.

Lor, static electricity only occurs between good insulators. Water is a conductor of electricity. Even humidity in the air will stop the build up of an electrostatic charge, so there's no chance of any within a water pipe.

 

[doitall]

And softus has produced one of the all-time great DIYnot answers.

Lor, static electricity only occurs between good insulators. Water is a conductor of electricity. Even humidity in the air will stop the build up of an electrostatic charge, so there's no chance of any within a water pipe.

In that case get a clamp meter and check for residual current.

anything over 20 m/amps will cause you grief, (No voltage)

Check everything that is bonded, all the pipework including the gas.

Is the property on a slope possibly with a stream or water at the lower end.

Residual current however can and does cause corrosion in heating systems.

 

[lor]

thank you to chrishutt and doitall for your replies.
softus ,very entertaining but it was a serious question to work out why this nursing home is disintergrating so fast. have you given thought to writing a novel ?

 

[JohnD]

we have a nusing home which has corroded through 2 1/2 " iron pipe in about 6 years.

Well it isn't static electricity doing it.

Is it drinking water, hot water, or central heating water?

 

[lor]

central heating pipe, also copper but mainly plastic.
no river or slope nearby

 

[JohnD]

Sounds like the central heating wasn't corrosion proofed and/or has a leak or pump over or something

If the pipes are corroded I bet the rads are worse

 

[doitall]

I have seen residual current take a 14 heating systems out in less than a year.

lor if you want to discuss it offline send me an email address (mines is in my profile)

 

[Softus]

In that case get a clamp meter and check for residual current.

anything over 20 m/amps will cause you grief, (No voltage)

What, in the name of all that's holy, is this supposed to mean?

Are you saying, based upon all your years of experience in heating systems, that there is a phenomenon that causes current to flow in pipework, without any voltage being generated, and that this current results in corrosion?

Residual current however can and does cause corrosion in heating systems.

Well that seems to have answered my question already. Do you have a reference to any publication that documents this phenomenon, or is it something that only you know about?

 

[Nige F]

Maybe someone ****ed someone off and for revenge a corrosive substance was introduced into the c/h system....has been known

 

[doitall]

In that case get a clamp meter and check for residual current.

anything over 20 m/amps will cause you grief, (No voltage)

What, in the name of all that's holy, is this supposed to mean?

Are you saying, based upon all your years of experience in heating systems, that there is a phenomenon that causes current to flow in pipework, without any voltage being generated, and that this current results in corrosion?

Residual current however can and does cause corrosion in heating systems.

Well that seems to have answered my question already. Do you have a reference to any publication that documents this phenomenon, or is it something that only you know about?

We have all the above Softus, including case studies.

As for sharing the information "not a cat in hells chance"

The OP has the opportunity to do the tests and contact me via email, end of discussion.

 

[kevplumb]

Maybe someone p****d someone off and for revenge a corrosive substance was introduced into the c/h system....has been known

DS 40 work's quite well on an old system

 

[Softus]

As for sharing the information "not a cat in hells chance"

I didn't ask you to share it, but it's interesting to know that you're one of those people who thinks that knowledge is power.

The OP has the opportunity to do the tests and contact me via email, end of discussion.

If you don't want to discuss it then I don't know why you're even posting here.

 

[doitall]

As for sharing the information "not a cat in hells chance"

I didn't ask you to share it, but it's interesting to know that you're one of those people who thinks that knowledge is power.

The OP has the opportunity to do the tests and contact me via email, end of discussion.

If you don't want to discuss it then I don't know why you're even posting here.

Your the man that think he knows it all softus, so go experiment.

I posted for the benefit of the OP not your ego.

 

[Softus]

go experiment.

Ooh - do you mean like the 'cold mains into the DHW cylinder' experiment that you were never capable of conducting?

I posted for the benefit of the OP not your ego.

Well done - I'm sure that he/she will be most grateful and enlightened.