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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. J

    Vent pipe into cws in attic

    So the cws in the attic needs to be moved a few metres. Is it ok to run the vent pipe across from the existing pipe work with a slight rise to where the new position of the cws is? Please tell me what the best practice is here?
  2. Ted808

    rat ate through a soil vent pipe

    Any advice to repair not replace... please! It's obviously in the tightest space and in the smelliest tiny room. As in RIP ratty. It's also on the joint of a 100"-90" reducer! Was thinking fibreglass wrap?
  3. R

    Washing machine drainage flooding back, nightmare, long horizontal run with no vent.

    Hello I’m new to this site but hoping someone can throw some light on a difficult problem on kitchen drainage. This is in my father-in-law’s 4th floor flat in Paris, in a modern block (1990’s) The roots of the problem are multiple. Really poor installation with an almost horizontal run of...
  4. F

    slow flushing toilet - is it the vent?

    Hi all! Hoping to get some advice: We have a slow flushing toilet that I've tried plunging, snaking and chemicals to get going but all of that made no difference. I noticed that if I detached the U-bend from the sink that goes to the same drain the toilet flushed perfectly - this led me to...
  5. A

    Vent problems after tank move

    Hello everyone, this is my first post. I am having problems with my upstairs hot water taps first thing in the morning. The system is an open vent with a cold storage tank in the loft and a direct hot cylinder on the first floor. The problem started about 5 years ago when I extended my bathroom...
  6. P

    Air intake on open vent Y Plan CH system

    Problem with air heard in some radiators when pump starts up and then in Bermuda back boiler when pump stops (water settling noise). Y Plan open vent system with 7 radiators controlled by TRVs and another radiator in hall which acts as a bypass (wall thermostat is located here). System...
  7. J

    Heat exchanger air vent open

    Hi. Just discovered water dripping from the heat exchanger automatic air vent. Dripping from the plastic screw head. Should this be open in everyday use or only when filling the system? Ta
  8. P

    Is this vent pipe location dangerous?

    I live on the second floor of a six story building and the basement flat directly below me at the back of the building has a small courtyard that is walled in on all sides. So essentially it's like a high, two story walled well. On the other side of one wall is a heating/hot water boiler of...
  9. J

    gate valve and vent on header tank outlet to speed future work

    Hi, about to replace some radiators, so need to drain system. While i'm doing it I'm thinking about doing a mod to make future drain downs quicker: Idea is adding a gatevalve on header tank outlet, and just below the gatevalve add a tee to a pipe that goes up to above tank level with another...
  10. L

    flue terminal too close to cooker vent

    some advice needed, I could do with some input on a fanned flue outlet being 200 mm away from a cooker hood vent, the vent has flaps which close when not under positive pressure from hood. would this be classed as safe due to the flaps closing when cooker hood not in operation. I respect the...
  11. jaydebruyne

    Open vent boiler on a sealed system

    hello all, I’m doing a flush today and I’ve noticed they have a Vitodens 100-W WB1B open vented boiler on a sealed system. Will this cause any issues in terms of normal operation?
  12. townfanjon

    I need some therapy guys, or a large glass of JD .

    Rant ... approx 15 years ago 2 council guys rocked up out of the blue and told us we have a public footpath running through our garden , oh great , cost then around 2K to shift it , after several letters etc they said that because they knew we didnt built the house and garden over the footpath...
  13. A

    Automatic air vent problem

    Hello, I have a Worcester heatslave 15/19 RSO oil combi boiler. We have had an issue where we haven’t been able to get heat to the radiators but we had hot water. I replaced the diverter valve cartridge yesterday as believed this was the problem when I then refilled the boiler with water we...
  14. Jock Spanners

    Central heating sucking air through vent pipe

    Evening all, I've just changed a Keston system boiler for a regular Worcestor with a pump. The customer had bought the boiler mistakenly thinking it was a like for like swap. I've added the pump and everything seemed fine but a week later he's complaining about air in the system and the F&E tank...
  15. S

    No vent pipe to F&E tank but is a vented system - need help to understand this

    While cleaning the airing cupboard I noticed the F&E vent pipe was not connected. The F&E tank water supply pipe connects direct to an air separator by the boiler. I assume air gets out of the system through this pipe via the bottom of the F&E tank. I have a vent pipe into the cold cistern from...
  16. M

    Vent pipe leak?? Lead flashing

    hi guys. I’m after advice on a vent pipe allowing water to pass through the lead? What she the best sealant or tape to reseal the lead to the vent pipe, which is plastic? Cheers guys
  17. D

    Soil Pipe Vent Question

    Hi all, In my new build I have 4 soil pipes that pop up at various walls on the ground floor. All pipes connect into a single pipe for the sewer. One pipe will connect to a toilet on the first floor and also connect to the shower and sink waste. Another will connect for kitchen water waste and...
  18. ShaunCorbs

    Feed and Vent fun :DDDDD

    does the feed and vent need to onto the flow pipework, i have a situation where is would be better if it could go on the return pipework something like below i think it does due to the vent reason for this its an 8m pump and he wont seal it
  19. Lambed84

    Conversion from open vent

    hi all. As the tag line states, a conversion from open vent to unvented. Going to use a 210ltr tank moved from airing cupboard to loft. My question is which brand do you guys recommend? Looking at reviews etc online is contradictive... Thanks in advance!
  20. Lambed84

    Conversion from open vent

    hi all. As the tag line states, a conversion from open vent to unvented. Going to use a 210ltr tank moved from airing cupboard to loft. My question is which brand do you guys recommend? Looking at reviews etc online is contradictive... Thanks in advance!
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