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still

A still is an apparatus used to distill liquid mixtures by heating to selectively boil and then cooling to condense the vapor. A still uses the same concepts as a basic distillation apparatus, but on a much larger scale. Stills have been used to produce perfume and medicine, water for injection (WFI) for pharmaceutical use, generally to separate and purify different chemicals, and to produce distilled beverages containing ethanol.

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  1. gmartine

    Britain’s gas network still using engines from 1960s RAF fighter jets

    Why am I not surprised? Britain’s gas network still using engines from 1960s RAF fighter jets Ageing aircraft turbines will cost millions to replace, says National Gas chief Jonathan Leake14 January 2024 • 5:49pm Mr Butterworth, chief executive of National Gas, says the network is powered by...
  2. D

    Do you need a power flush still with new rads

    My Mother-in-law was quoted £1,000 by British Gas to do a power flush on her system as her rads aren't performing well. I was wondering, as 4 radiators need to be upgraded to doubles, would this need to be done if they are drained off and replaced? How does one actually know it needs a power...
  3. J

    Boiler or pipes STILL banging when CH is cooling down,any ideas?

    I posted in summer as HW system banged when cooing down it is now even worse once CH is cooing down but it's common between both systems any ideas folks, desperate now. Potterton combi boiler 10 yr old inherited 4 yr ago when I bought house, no issues until earlier this yr.
  4. A

    2 months, 4 plumbers, still no hot water. I am desperate!

    Hi there, I am at my wit’s end with this problem which seems to have stumped all the plumbers in my local area and would appreciate any advice. I bought a new place in November which had been installed with a new Gledhill ES 150 l stainless steel unvented cylinder in March of this year. On...
  5. R

    URGENT New Hot water pump still running constantly after boiler cuts off

    Scottish Power fitted new pump and claim fault in the tank?? Scottish Power engineer claims fault with sensor in tank however the central heating pump switches off when rads at temp. A Bastian pump was fitted in place of the Grunfos one - I've insisted he returns to fit a Grundfos one as I...
  6. M

    gas boiler has been idle in storage for 2 years, will it still work?

    Hi all, A friend of mine no longer needed a one year old condensing gas boiler so I took it off his hands and left it in storage for the last 2 years until I needed it. The time has come to replace my old boiler with the one that is in storage but when I was speaking with a plumber about...
  7. J

    URGENT Timer is off but boiler is still operating!!

    Obviously somewhere is wrong here, but where is it please? My timer is off one hour already, but the boiler is till operating, cylinder is operating, the central pump is still burning hot, the gas meter is still running numbers!!! Anyone please help why this is? Yesterday I post a thread that...
  8. K

    Is my wall still under leak or it is talking time to dry up?

    Mine is a two storeyed house. The groundfloor toilet and first flower shower are at same alignment. About two months back, I cleaned my shower drain like this in the video: Unfortunately, when I removed the siphon, the left out water (about 1 litre) around the area started draining. For...
  9. D

    URGENT No heating or hot water still

    I posted earlier about my boiler pressure and that I had someone out and they said it needed a new heat exchanger now that was Monday so be a week tomorrow where they was last out my housing system are down at mo so no-one can look into it apparently but the gas engineer said I could keep...
  10. S

    Hi all our boiler has just had a new expansion vessel fitted but pressure is still going to 2.9 bars when using central heating . Is this normal? Than

    Hi All our boiler has just had a new expansion vessel fitted bit the pressure is still rising to 2.9 bars . Is this normal ? Many thanks
  11. P

    Honeywell ST9100C set to 'off' but boiler still provides domestic hot water.

    Hello folks - first post here. Last week our faulty Honeywell ST6100C programmer was replaced by a ST9100C, this being the Honeywell-recommended replacement. Our regular heating engineer did the swap because the backplate was stuffed, so a simple DIY clip-on swap wasn't possible (by me at least...
  12. K

    Radiators under windows still?

    Hi, I've seen and heard several people actively discouraging fitting rads under windows with some claiming it as a 'last resort'. I get their logic but I think its misplaced. I still reccomend placing under windows as I want to eliminate draughts and believe that having the air curtain and heat...
  13. G

    why would water still be coming from boiler sensing pipe?

    hi, i'm trying to replace diverter valve membranes on a baxi 105he. i have isolated cold water and run/left on downstairs hot water tap until empty and drained the boiler. the problem is when disconnecting the sensing pipe from the dhw diverter. water just keeps coming from the sensing pipe. can...
  14. B

    Radiator still warm when switched off

    Hi all, newbe here. Just replaced a o ring on the ideal isar he30 boiler diverter valve manifold and all went great but now the boiler displays 0 on the panel but the radiators are still getting warm when switched off. Has anyone got any ideas what is going on, cheers,
  15. P

    Do you still do plumbing once gas safe registered?

    Question for the plumbers turned gas engineers. Do you still carry out plumbing repairs, bathroom installations, etc. I still do but getting fed up of being stuck on a bathroom job and losing the gas work as I'm fully booked. Been gas safe for around 5 years now. Took someone on to do the...
  16. P

    Boiler showing pressure but still have flashing radiator symbol

    Hello can someone help, my boiler this morning needed topping up as it was showing no pressure and flashing radiator symbol, I've topped it back up but still have the flashing radiator symbol and won't fire up. It's a glowworm 100e Thanks for any advice Pete
  17. M

    All new spindle extensions - still drips!

    #1 Hi all, I have no knowledge when it comes to plumbing so will describe our situation best I can... A few months ago, our bath tap began to leak. No matter how hard we turned the taps off (which we later learnt causes further damage) it would still leak, and gradually got worse over time. We...
  18. O

    What a great web page!

    Hello all I became a gas engineer about three years ago, so still quite unexperienced but eager to learn. Many thanks for letting me join.
  19. L

    Replaced the cold water cartridge on a traditional kitchen mixer tap but still leaks

    Tried running the hot tap then checking to see what the water temp of the drip was after and it was cold so to me that means the leak is from the cold water valve side. Replaced the cold water ceramic disc cartridge but the drip is still there (even when I turn off the mains but don't fancy...
  20. M

    All new spindles on taps - still drips!

    Hi all, I have no knowledge when it comes to plumbing so will describe our situation best I can... A few months ago, our bath tap began to leak. No matter how hard we turned the taps off (which we later learnt causes further damage) it would still leak, and gradually got worse over time. We had...
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