Compression joints

[TomLane]

I did indeed misread some of your thread, I assumed you were describing a tee connection as you said it was under the floorboards. But you also said there was little room for a saw, no mention of room for smaller tools, hence why I mentioned the olive puller. If the space is really that limited, this might be of some use if you really must do the job yourself & risk causing further problems.

For the others viewing this thread who regularly post on here why would one of these valves be under the floorboards?!? Bodged or deliberate?

 

[rpm]

I was once told never use chrome nuts on brass fittings or vice versa, any truth in this people or is it something to do with brass / copper olives and chrome fittings, not talking about chrome pipe here just good old fashioned copper pipe.

 

[woodytheplumber]

i have never yet had a olive i couldnt remove with my grips i have never used an olive puller and dont think i will be buying one

 

[Ermintrude]

All those olive pullers / cutters are gash! Bit like a microbore pipe slice!

1. Buy monument olive cutter or

2. Set adjustable to just over dia of tube, put behind nut and slid along tube with force and off pops the nut and olive. Or cut olive - u might mark tube then u have a problem.

Seal joint with jet blue paste.

 

[happyflyer]

Use one of these to remove the olive

Where was leak from previously? Via the thread on the joint or around the pipe?

Do you mean the connection is a Tee piece?

Wow Tom how much was that, junior hacksaw very carefully part way through the olive and a screwdriver in the cut and twist, cut through at 45 deg across the olive, do the three in 3 mins, you will be lucky if you can get that machine in the gap

 

[supper plumb]

WRAS approved, potable, ready-to-use jointing compounds which are ideal for general use on compression joints, screw fittings as well as acting as external leak sealers.

 

[TomLane]

Wow Tom how much was that, junior hacksaw very carefully part way through the olive and a screwdriver in the cut and twist, cut through at 45 deg across the olive, do the three in 3 mins, you will be lucky if you can get that machine in the gap

Not sure, never bought one, I "acquired" mine. Used someone else's previously to owning one as I was interested as to how it worked. It fits in the palm of your hand & does 22mm & 15mm so isn't overly large. It obviously won't fit in the smallest of gaps unfortunately. It has it's uses where you can't pull off the olive with grips, or by whacking the nut to force it off, or by cutting the olive or even cutting a short length of pipe off!

 

[Markus]

Personally if pipes and olives sound and new fitting snug a wrap with ptfe is usually good shout.

 

[AWheating]

as above, if the new fitting suits the old nuts and olives then rap with ptfe and tighten back up.

if you need to remove the olives then use some grips, if they wont work off use a junior and small screwdriver.

worse case cut back and solder/comp couple some new bits of pipe.

if you think we are mind readers and know how much room you have well great, but why not post a picture instead. Saves you having to complain we dont know what your asking.

 

[SimonG]

Thank you for your comments. It was obvious that some of you did not read my thread carefully. No way can I remove olives using the large tools shown as I have a confined space under floorboards. The 3 way water valve does not leak but has problem going the full turn without sticking and stripping the actuator gears that drive it. I suspect the ceramic inside the valve has been coated with dirt particles in the water over the yearr.Although very old, I do have a direct replacement , a Switchmaster 3 port valve put by to install - all brass. I will take note of your comments when replacing it. I may be forced to leave the old olives in situ if I can't file them off with a miniature hacksaw and hope PTFE tape will do it's job. Thanks again.
PS I'm still not sure how to use the web site to generate posts so I hope I have done the right thing in the way I have responded.

That's the magic of plumbing, in impossible spaces achieving miracles.

Forget the switchmaster and get a Honeywell valve and head put in. Don't forget to get some inhibitor into the system otherwise your new three port won't last very long.

Hacksaw so far through the olives and then split it with a flat head screwdriver. Fit the new nuts and olives and paste should suffice, unless somebody has wrung the life out the nuts previously, then I'd be giving a few wraps of ptfe and paste.

 

[supper plumb]

I love a challenge it puts your brain to work then when its all done and working water tight you get to stand there and say i done that proud man at work well just me then

 

[stevetheplumber]

ptfe on olives goes with a white horse and spurs

 

[SimonG]

ptfe on olives goes with a white horse and spurs

Well that's a shame cos ptfe goes on all my olives on oil lines.

 

[Koogatubac]

I love a challenge it puts your brain to work then when its all done and working water tight you get to stand there and say i done that proud man at work well just me then

Some of your comments on here dude... Like wtf?! Ptfe on olives are DIY...never had a leak with jet blue plus (jointing compound) use it on EVERYTHING...heating, hot and cold circuits and gas

 

[supper plumb]

i didnt say ptfe on olives was DIY

 

[AWheating]

nowt wrong with alittle ptfe around an olive. had plenty of fittings weep with paste fixed with a rap of ptfe.

maybe i should buy better fittings lol

 

[TomLane]

i didnt say ptfe on olives was DIY

I think he's saying that its DIY not that you said it!

I've done it previously too. Horses for courses.

 

[supper plumb]

i think its down to the user and the job

 

[Ermintrude]

Jet blue is a lot cleaner and easier to use than fernox or boss white. I likes me locktight 55! Haven't got any standard ptfe anywhere !!

Smosh some jet blue on threads and if ur really worried back of the olive.

 

[Rickster123]

Not this argument again! :45: