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The red-vented bulbul (Pycnonotus cafer) is a member of the bulbul family of passerines. It is a resident breeder across the Indian subcontinent, including Sri Lanka extending east to Burma and parts of Bhutan and Nepal. It has been introduced in many other parts of the world and has established itself including New Zealand, Argentina, Tonga, and Fiji. It has also established itself in parts of Samoa, Australia, USA and Cook Islands. It is included in the list of the world's 100 worst invasive alien species.

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  1. Z

    Vaillant VR10 with a vented cylinder?

    Hi, I was hoping to replace an old system boiler with a Vaillant Ecotec Exclusive 627 system boiler, thats the one with the diverter valve so no need for zone valves, controling it with a V-Smart and a VR10. I've spoken to Vaillant Tech and they said you cannot use the VR10 with a vented...
  2. H

    Constantly losing hot water pressure from Direct Vented Cylinder

    Hi, I have a hot water cylinder which feeds 3 outlets (kitchen sink, basin in bathroom & bathtap) which has never had very good pressure (probably because of the set-up) but last year got so feeble that a guy suggested fitting a pump alongside the cylinder. This can work fine but then all of a...
  3. C

    Pumping over on vented system, despite cleaning, new pipework and ..

    … praying to the plumbing God, Bob Pictures and layout details attached, so be patient. 21 year old oil fired system in pretty good nick. I noticed some minor pumping over from the vent (occasional burst of water, and the odd dribble). Didn’t think much of it as I was about to replace the...
  4. S

    Pressurizing a vented cylinder

    Hi guys, I have a question regarding converting an open vent system (copper cylinder) to pressurized, reason being not enough drop from the loft to power a shower, while i know the common advice is to buy a special unvented cylinder I can see no reason why an unvented copper cylinder cannot be...
  5. dave100

    New unvented cylinder / Replace old vented cylinder and add a ST pump?

    Hello, I am renovating a small bathroom in an apartment on the 5th floor. Heating is electric, no gas or oil. I have four (related) questions about this below. I had intended to reuse the cold water tank and the cylinder sitting underneath it but my plumber suggested I replace the cylinder as...
  6. M

    Rayburn plumed into vented hot water tank

    Hi, I have a rayburn 212 that I have plumbed into a vented hot water tank as far as I am aware I do not have to vent the rayburn as the tank is vented, is this correct. attached Is an image of the tank and a very basic schematic, fig 1 is how I have it plumed fig 2 is how I would plumb if the...
  7. A

    System boiler with vented system (bodged new install, what next)

    Previously had a WB Greenstar R28 HE System boiler with 4 pipes and vented (gravity fed) cylinder. No valves or pumps outside of the boiler. Worked fine for 20 years. Decided to change to Viessmann 050-W System boiler when WB failed but keep the same set up with cylinder. Gas Safe installer I...
  8. J

    AUS removing old concrete vented drain at home

    Hi I'd like to demolish this concrete and replace so as to move it 30cm to the left. can I presume this is a vent. if so, can I vent it up the wall and not have to have the concrete feature to trip over ? thanks james
  9. P

    Vented hot tank pressure problem

    I’m fitting a vented copper hot tank heated from a Stanly Range in a mobile home Due to height restrictions I cannot site a header tank. But can vent to outside. Is it possible to use a pressure reduction valve and connect to the mains gir water supply
  10. D

    Expansion tank location open vented Maxipod

    I'm about to start the plumbing of my house and wanting to use a maxipod with a oil fired boiler and a log stove. But its a single story house. Can i have my expansion tank below the flow and return pipes located in the ceiling? I've did a basic drawing below to show the layout.
  11. R

    Vented indirect cylinder venting issue

    A customer of mine lives in an old cottage that has been extended. They have three loft areas that are completely separated. The CWSC is in one higher loft space, the hot water cylinder and shower pump live in another lower loft. They are on different sides of the building. There is single 22mm...
  12. I

    Low cold water pressure after vented boiler replacement

    Hello, I have a had a gravity boiler replaced from a Potterton 80e to a more recent Valliant ecoplus boiler. The cold water tank is in the loft space directly above the 1st floor bathroom and the hot water copper immersion tank is in the 1st floor bathroom cupboard space. A fairly normal...
  13. plumb_know

    USA open vented soil pipe

    doing a new build, built between 2 existing properties. From my study days i seem to recall that only 1 in every 3 properties need to be open vented soil stack and the property at the end of the drain line. Is this correct or have i made this up. i have tried sourcing the answer online but cant...
  14. P

    Pressure too high in open vented system

    Hi Guys, Hopefully someone can help me out - the pressure reading on my boiler and in the hot press seems too high. Just wondering how can this be adjusted? Hot Press: Downstairs boiler: Any help would be greatly appreciated
  15. E

    UFH not getting hot on vented system

    Hi folks, I’m in need of some sound advice. We have recently had a ground floor extension and have had underfloor heating (company: JK UFH) installed throughout most of the downstairs. We have a few rads still left downstairs and the entire upstairs is still heated through rads. We have a...
  16. E

    How can I get heat into Gravity Fed UFH system

    Hi folks, I’m in need of some sound advice. We have recently had a ground floor extension and have had underfloor heating (company: JK UFH) installed throughout most of the downstairs. We have a few rads still left downstairs and the entire upstairs is still heated through rads. We have a...
  17. G

    open vented heating design help

    hi guys and gals I'm a plumber/gas engineer with little experience in installing open vented systems I have done 3 with help in all my years (23 years) and they were standard setups, I have done hundreds of alterations to systems and repairs etc I have been mainly doing convert to combi or combi...
  18. S

    Venting a non vented tank

    Hello all Is there any reason why I couldn't convert a non vented thermal store to a vented version by removing the AAV on top of the tank and replacing it with a header tank?
  19. C

    Using a vented hot water cylinder on an invented system

    Hi, Can you use a vented hot water cylinder on an unvented system? Many Thanks, Carl
  20. P

    Using hot water from a vented system for the first time in 2 years

    Hi all For various reasons, we haven't used the hot water system in our house for a couple of years. It's a vented system with a tank in the loft. I want to try it out now but wonder whether there could be any potential problems from Legionella or anything else potentially nasty? I don't...
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