Hi whats the best method for fitting an immersion heater putting ptfe around the thread, jointing compound or non at all just the fibre washer that comes with it?
Immersion heater
- Thread starter tommyl18
- Start date
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M
mysteryman
Completely clean, bone dry with the supplied washer. Don't Boss-white it, or it'll be a pig to remove when the time comes. Leave it unconnected electrically until the cyl is full, check for leaks before wiring it up.
what would be your next option then if you did it clean and it was leaking and you had tightened it as tight as it would go
M
mysteryman
If it was a new undamaged immersion, then your cylinder must be faulty. You can try masses of PTFE tape around the threads and the face.
PTFE =
1)Plastic Tape For Engineers
2)Plumbers' Tape For Everything
3)Polytetrafluorethylene
PTFE =
1)Plastic Tape For Engineers
2)Plumbers' Tape For Everything
3)Polytetrafluorethylene
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there is a dent on the cylinder where some eegit has hit it with a hammer trying to get an old immersion heater off.Ive fitted new immersion but it was weeping very slightly even after shedloads of ptfe ive drained it down 3 times and tried more ptfe getting slightly ****ed off as should have took a couple of hours tops but just keeps weeping ive now tried using some potable jointing compound and it seems to have done the job so far but wanted some advice as im at a bit of a wits end if it starts weeping again and wasnt sure if it was a common problem with new immersion heaters weeping pain in the ass i tell thee!!!
Never had a problem generally use washer provided and a little PTFE, your prob, at a guess seems to have arose from being ****ed with a hammer, it never helps, altohugh does make you feel better at times 
If there's a ding in the face of the immersion flange, you may be able to dress it up a bit with a fine file. There's probably a raised edge around the dent - the displaced matal has to have gone somewhere.
Don't beaver away at ithe dent with a magneto file, you need the whole flange face to be flat when you've finished. Colour in the face of the flange with a marker pen, use a large flat file that spans the width of the flange, and aim to just file the marker ink off all the way round the flange. That should show up any high spots that need working on.
A 10" or 12" smooth file would be my choice, and better a used one than a brand new one - new ones are a bit too sharp, and tend to dig into brass a bit too deeply. Hold both ends, and work it side to side as much as back and forth, and frequently change the angle you work from.
Don't try to file out the whole dent - just aim for a continuous band of clean metal all the way round the flange.
A piece of emery paper glued to a flat board can work well too.
Dunk the fibre washer in water for a minute or two before fitting to soften it up a bit.
Don't beaver away at ithe dent with a magneto file, you need the whole flange face to be flat when you've finished. Colour in the face of the flange with a marker pen, use a large flat file that spans the width of the flange, and aim to just file the marker ink off all the way round the flange. That should show up any high spots that need working on.
A 10" or 12" smooth file would be my choice, and better a used one than a brand new one - new ones are a bit too sharp, and tend to dig into brass a bit too deeply. Hold both ends, and work it side to side as much as back and forth, and frequently change the angle you work from.
Don't try to file out the whole dent - just aim for a continuous band of clean metal all the way round the flange.
A piece of emery paper glued to a flat board can work well too.
Dunk the fibre washer in water for a minute or two before fitting to soften it up a bit.
M
mysteryman
Brass flange on a cylinder?
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