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A hydrothermal vent is a fissure on the seafloor from which geothermally heated water discharges. Hydrothermal vents are commonly found near volcanically active places, areas where tectonic plates are moving apart at spreading centers, ocean basins, and hotspots. Hydrothermal deposits are rocks and mineral ore deposits formed by the action of hydrothermal vents.
Hydrothermal vents exist because the earth is both geologically active and has large amounts of water on its surface and within its crust. Under the sea, hydrothermal vents may form features called black smokers or white smokers. Relative to the majority of the deep sea, the areas around submarine hydrothermal vents are biologically more productive, often hosting complex communities fueled by the chemicals dissolved in the vent fluids. Chemosynthetic bacteria and archaea form the base of the food chain, supporting diverse organisms, including giant tube worms, clams, limpets and shrimp. Active hydrothermal vents are thought to exist on Jupiter's moon Europa, and Saturn's moon Enceladus, and it is speculated that ancient hydrothermal vents once existed on Mars.

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  1. W

    Bungs and automatic vents

    Did I hear someone on here say that if bunging the vent and feed of a tank you should also make sure automatic air vents are closed? Is this true? I thought air would only go one way with them. If it's true how do you close them? And also, presuming you might not find all of them - do they...
  2. G

    air lock

    Need idea of removing airlocks on large gravity circuit, Has 1 f & e tank which feeds 3 zones of heating which has a boiler for each zone.Approx 20 radiators over the 3 zones with only a couple in each zone warming up . The circuit itself is alarge circuit and is old . Hestitant to back fill...
  3. D

    Blocked Flue Vents Solid Fuel Boiler (Trianco TRG45)

    Hi, Was wondering if anyone might have any tips how to get the rock solid soot build up cleared from the flue vents in my Trianco TRG45. They are not completely blocked and have sufficient airflow for the boiler to run but cannot get the flue vent cleaner tooldown the vents. I think this is due...
  4. P

    Shared soil pipe?.

    Hello to all on the forum, I have a question I hope you can help me with: My bathroom is in the middle of my terraced house, so no outside wall, my soil pipe goes up into the loft space and out through the slated roof, I want to fit an extraction fan in my bathroom, can I tee into the soil...
  5. M

    Air vents

    I am moving a bathroom for a client, in the room the bathroom is being moved to I found 2 air vents through holes in the floorboards for the flow and return to the boiler (under the carpets). I investigated further and found that the pipes came up from the boiler in one corner, travelled along...
  6. T

    Ventilation when you have a gas appliance

    I used to have a Baxi Bermuda VP with back boiler (natural gas) in the living room. Regulations dictated that I had vents in my front door which we had. I understand the regulations changed we actually should have had a vent in the living room as well. We no longer have any gas appliances...
  7. C

    Power shower stopped by probably and air lock

    I have a pumped (2bar) shower running from a conventional roof tank fed cylinder. The hot water take off is from a dedicated outlet about 6 inches down from the top of the cylinder. The pump is about 2 feet above the top of the cylinder. The roof tank is a good metre above the upstairs...
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    • Thread
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    • Replies: 9
    • Forum: Plumbing Jobs | The Job-board
  8. B

    why it's important to check vents

    Asked to carry out gas check on a property with a back boiler. The boiler was heavily sooted and landlord admitted it had not been checked for 2 years. After carrying out checks on the boiler which were ok, I then turned my attention to ventilation and this it what I found:
  9. V

    Stuck Radiator Air Vents .

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  10. V

    soil pipe vents into loft space - advice please?

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  11. A

    Auto air vents on Hot water

    Had a few problems with air in my hot water recently and I was just wondering if you can install a auto air vent on to a hot water pipe? Thanks in advance Adam
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  12. F

    Radiator vents

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