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re: Hints, tips & secrets of plumbing - No Banter please!

when changing a diverter valve on a vaillant turbomax, after draining the primarys whilst talking to the customer..dont forget to switch off the main cold feed before removing the diverter valve..lol


weve all been there!!!
 
re: Hints, tips & secrets of plumbing - No Banter please!

If trying to take apart a seized brass fitting, heat it with blow lamp then dunk in cold water - the expansion and sudden retraction will usually free up the seizure.
 
re: Hints, tips & secrets of plumbing - No Banter please!

when changing a diverter valve on a vaillant turbomax, after draining the primarys whilst talking to the customer..dont forget to switch off the main cold feed before removing the diverter valve..lol

Opps is daisy
 
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re: Hints, tips & secrets of plumbing - No Banter please!

If you are a scrap peasant like me, once you've stripped the insulation off a HW cylinder (btw Im about to try a wire saw for this purpose) - use an angle grinder and thin cutting disc to cut the welded joints off then cut the coil out and tada - you have twice the value in bright and a little bit of brazings..instead of the regular cylinder price.
 
re: Hints, tips & secrets of plumbing - No Banter please!

Once you have eliminated all the obvious whatever is left, no matter how unlikely is probably the answer.
Nice tip Spock lol just waiting for its only logical!
 
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re: Hints, tips & secrets of plumbing - No Banter please!

so what do you get for a cylinder bunker
Depends on size but often its about £25 for one with insulation, maybe £45 with no insulation but youd expect about £55 for the same size if cut up. I cut all my copper up anyway to separate bright from brazings, so grinder already out and turning. I do this on a sunny sunday afternoon and strangely enjoy it...sad eh!
 
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re: Hints, tips & secrets of plumbing - No Banter please!

Depends on size but often its about £25 for one with insulation, maybe £45 with no insulation but youd expect about £55 for the same size if cut up. I cut all my copper up anyway to separate bright from brazings, so grinder already out and turning. I do this on a sunny sunday afternoon and strangely enjoy it...sad eh!

I do exactly that. It is strangely satisfying.
 
re: Hints, tips & secrets of plumbing - No Banter please!

Depends on size but often its about £25 for one with insulation, maybe £45 with no insulation but youd expect about £55 for the same size if cut up. I cut all my copper up anyway to separate bright from brazings, so grinder already out and turning. I do this on a sunny sunday afternoon and strangely enjoy it...sad eh!


i would find a better scrappy! ask around about the prices paid. my scrappy only pays an extra 10p per kg for 'bright' than he does for mixed brazed imo it is not worth the faff
 
re: Hints, tips & secrets of plumbing - No Banter please!

£3.9 per kilo here for mix copper and some brass with it
 
re: Hints, tips & secrets of plumbing - No Banter please!

Always charge the customer for absolutely everything, & i mean everything.
some customers will waste your time by asking alot of dumb & stupid questions, you dont have to accept this sort of thing.

the other day, someone phoned me and asked, How much do you charge ?, i said to him, i charge £300 to answer 3 questions, he said to me, That's abit steep isn't it ?, so i said yes it is, And what's your 3rd question ?


you need to be absolutely ruthless in this game, dont let the brass-tards walk all over you.
 
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re: Hints, tips & secrets of plumbing - No Banter please!

How to repair a leaking Essex flange

For some reason, Essex flanges come with pathetic rubber washers which seem designed to perish after about 5 years.

I come across this quite a bit and have developed a technique for repairing them.

Firstly drain down the cylinder to below the level of the flange, and gripping the tail of the flange, unscrew the nut about 10mm and clean out the remains of the perished washers and the exposed thread so the nut can screw freely backwards and forwards.

Take some lengths of hemp and paste them up with Boss White or Hawk White. Screw the nut back on so that the flat washer is about 3mm off the face of the cylinder and disconnect any pipework to it so you can get your hand round it.

Centralise the flange in the hole and wrap the hemp tightly around the flange between the cylinder and the flat washer. Try to push the wound hemp along the thread into the cylinder using the flat washer, build up so you have filled the entire space between the cylinder and washer and have excess hemp wound past the washer.

Carefully hold the end of the Essex Flange with grips and with a large spanner wind the nut back tightly onto the cylinder to compress the hemp and paste as tightly as it will go. It needs to be VERY tight.

Reassemble, fill with water and allow water to heat up. Occasionally you may need to repeat the process again if you are slightly off-centre in the hole.

Once the hemp and paste has set, you've got no chance of redoing the joint without cutting it out and using a new Essex flange.

I tend to assemble new Essex flanges this way instead of using the washers that come with them.

A similar technique can be employed for repairing leaking coil connections on a cylinder.
 
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re: Hints, tips & secrets of plumbing - No Banter please!

will a roll of ptfe not do the job ? never had to repair one so that is why I am asking
 
re: Hints, tips & secrets of plumbing - No Banter please!

PTFE won't work as you wouldn't be able to get it tight enough, and hemp and paste seals better. Hot water systems are classed as non-potable.

It's actually not that hard to do it the way I have described. You could replace the washer as Kay-Jay suggests but I consider hemp and paste a better means of permanently sealing it.

In the past when I haven't had an Essex flange handy, I have on occasion simply soldered a tank outlet connector onto the cylinder and if soldered properly it'll never come off.
 
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re: Hints, tips & secrets of plumbing - No Banter please!

When you remove a part from a boiler, smash it to pieces! No way of mistaking it with a serviceable part!

A small piece of 15mm copper crimped at one end and a pushfit cap end at the other makes a great container for your flux brush!
 
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re: Hints, tips & secrets of plumbing - No Banter please!

Never ever ever change an expansion vessal on a worc 35cdi unless youve got a morning to kill and dont mind completely gutting a boiler, unbelievable.
 
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