what happened to this shower

[tom1]

any thoughts on why this happend

when turned on watter pours out the bottem

 

[Andy™]

problem may be its on sideways

 

[Apache]

pressure release valve has gone, you kinked the pipe

 

[tom1]

[quote name='Andy

 

[aaza]

Thermogalvanic Effects

Driving potentials for the corrosion of copper can be created by temperature differences in under-the-slab, hot and cold domestic water lines that are in metallic contact with each other at the hot-water heater. This phenomenon should be suspected when the external corrosion of copper water lines occurs only to the hot-water tubes.

Copper is anodic to carbon, and corrosion can be expected to occur if contain appreciable amounts of carbon. Moisture, however, must be present for this galvanic action to take place.concrete will normally be cathodic to nearby copper

 

[tom1]

Thermogalvanic Effects Driving potentials for the corrosion of copper can be created by temperature differences in under-the-slab, hot and cold domestic water lines that are in metallic contact with each other at the hot-water heater. This phenomenon should be suspected when the external corrosion of copper water lines occurs only to the hot-water tubes.

Copper is anodic to carbon, and corrosion can be expected to occur if contain appreciable amounts of carbon. Moisture, however, must be present for this galvanic action to take place.concrete will normally be cathodic to nearby copper

good answer:Applaud

 

[Evans Electric]

Thermogalvanic Effects Driving potentials for the corrosion of copper can be created by temperature differences in under-the-slab, hot and cold domestic water lines that are in metallic contact with each other at the hot-water heater. This phenomenon should be suspected when the external corrosion of copper water lines occurs only to the hot-water tubes.

Copper is anodic to carbon, and corrosion can be expected to occur if contain appreciable amounts of carbon. Moisture, however, must be present for this galvanic action to take place.concrete will normally be cathodic to nearby copper

Thats what I was going to say !!!

 

[tom1]

Thats what I was going to say !!!

looks like he just beat you too it, mate.

the shower is ten years old, putting a new one in tommorow, never seen one corroad and melt like this befor.

so i thinking then its corroded, over heated melted its holder and cable around it.

just wanted to see what people thought as i dont want the new one going the same way any time soon:run

 

[mikep]

I would have said the element has failed and electrolysis has dissolved away the copper !!

 

[tom1]

so bang a new shower in, sorted

 

[Lee321]

so bang a new shower in, sorted

upgrade the 2.5mm feeding it first ROTFWL

i know its just the pic ray

 

[tom1]

upgrade the 2.5mm feeding it first ROTFWL i know its just the pic ray

will just put a 20 amp mcb. :run

it is 6mm mate, i must admit the pic made me think twice

 

[Riggy]

Limescale!

I kid you not. Seen two recently (both on borehole water supplies as it happens), limescale builds up in "cylinder" causes hot spots, melts solder/copper. Does not operate thermal cutout as limescale prevents heat transfer - well that's my theory anyway!

 

[superspark]

Thermogalvanic effects

i,m gonna use those words tommorow

i like them

 

[tom1]

put new one in and luck would have it both the pipe work and cable was in the wrong place.

ended up routing the cable across, is it alright like that never done it that way, cant see how it could cause a problem what do you guys think?

thanks

 

[Andy™]

looks fine

 

[tom1]

had a look at the switch, no wonder the neon did not work.

not sure why it was done like this, i put the neutrals were they should be, put probe on neutral in shower to do zs and got 240 volts.

new switch and its all fine.