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  1. P

    Non return valve on header tank cold feed

    Hi, just a quick one (I hope). Could a non return valve placed on the cold feed from the header tank cause pumping over from the vent pipe when the central heating circulating pump is on? Thanks, Pat
  2. M

    Ideal FF330/350 open vent dripping into small header tank

    Hi - the open vent is constantly dripping into the small header. I can not see a pressure gauge in the system and suspect the following: a. the coil in the immersion tank has split b. the PRV is faulty c. the big guy upstairs has it in for me Any thoughts or resolves would be muchly...
    • mrhaynes00
    • Thread
    • confirm cylinder dripping header header tank higher ideal simple tank vent
    • Replies: 3
    • Forum: Plumbing Jobs | The Job-board
  3. B

    Hot water keeps venting into header tank

    I have an Ideal Icos HE15 open vent boiler which is 8 years old. Recently, the boiler keeps cutting out only a few minutes after firing, meaning the radiators only get warm, nowhere near hot. Just before it cuts out, hot water "spurts" a few times into the header tank. Two or three minutes...
  4. A

    vent pipe to header tank

    Hello my first post strange problem when central heating switches on the vent pipe from header tank starts to vibrate the pipe is not moving but when you put a hand around it you can feel vibration been running well for 5 years this has just started last few weeks.had plumbers out and also gas...
  5. I

    Can you put Expansion vessel in the same location as previous open ventd header tank

    I have a header tank at ceiling height on the first floor and we want to put rads on the 2nd floor above the header. - It would be v. difficult to raise the header tank Is there any reason why you can't put an expansion vessel in the same place as the existing header tank, so it replaces...
    • interesting100
    • Thread
    • expansion expansion vessel header header tank location previous put tank vessel
    • Replies: 16
    • Forum: Plumbing Jobs | The Job-board
  6. J

    Discharge into header tank

    Ok so was at a job yesterday, customer said boiling water had been discharging from his header tank for the past 4 months. I took a look, got everything up and running, stayed for a good half hour everything seemed to be working perfectly and just as I was about to leave boom the pump started to...
  7. D

    Brown sludge/scum floating in CH header tank, is this just bacteria ?

    I was about to drain the heating system and noticed a brown skin floating on the top of the water in the header tank. there is also some white 'salt like' colouring. I assume this 'scum' is a sort of bacteria that needs to be removed before draining the system. Can anyone advise what it is please?
  8. L

    cold water header tank overflowing

    This has happened on and off for years. It only happens sometimes after I use the shower which has a direct cold water gravity feed to power shower pump from the header tank. Running hot and cold taps for short time usually stops the overflow and normality is resumed. but its a pain that it...
    • litody
    • Thread
    • cold cold water happens header header tank overflow overflowing tank valve water
    • Replies: 19
    • Forum: Plumbing Jobs | The Job-board
  9. C

    Asbestos header tank?

    Hi All, I've popped over from the electricians forum for some advice. I was at a house today to install the wiring for a shower pump that the customer was installing, customer asks me if I had a hole cutter he could borrow to drill a hole in the header tank for his cold feed. When I looked at...
  10. J

    Header tank filling through cold feed.

    Need some help with this one. Have an old 3 pipe system in a pub Which fills the header tank via its cold fill and subsiquently overflows. The cylinder is 2 years old as it was replaced due to to splitting its also had the cf and ov moved to correct location behind pump. It's also had a pump and...
  11. H

    Header tank puming over..

    Was called to a job today. Customer said there was a banging sound in the loft. Went up to investigate and noticed the open vent was pumping over boiling hot water. it was like a team room up there. Had a look in the cylinder noticed the pump speed was on 3 so turned it down to 2 had another...
  12. S

    Central heating header tank

    Hi all, I have a vented central heating system made up of: Ground floor: Potterton floor standing boiler (very old but still going) 3 radiators (there were 5 but 2 were removed some years ago) 1st Floor cupboard: Hot water cylinder (less than 3 years old) Grundfos UPS 15-50 pump (next to hot...
  13. M

    header tank does not fill quick enough?

    Late evening just filling bath until the hot water stopped. Cold water still running with loads of pressure. Quickly in to the garage to collect the ladders. Once in to the loft the header tank is empty, with only a small tickly/sprinkle coming out of the ball cock area. Any ideas?
  14. L

    Header tank

    Had my C Heating system service today ( British gas ). My C Heating is a gravity system, I have just switched my heating on and was getting water from the header tank over flow, it was ok before the service, what would have cause this to happen, the pump is on setting 2,and the boiler thermostat...
  15. C

    Advice please on Electric Hot Water Cylinder and Header Tank

    Hi, I'm a novice, so please bear with me, and apologies if I'm using the wrong terms or not giving enough detail. I would really appreciate any advice on the following: I have an electric hot water cylinder (which typically heats the hot water on the night time cheap rate electricity, and...
    • Craig T
    • Thread
    • advice cylinder electric header header tank hot hot water hot water cylinder please tank valve water which
    • Replies: 4
    • Forum: Plumbing Jobs | The Job-board
  16. J

    Central heating won't drain - Brown geletanous substance on surface in header tank.

    Hi all, I'm doing some changes to my central heating system which involve moving two rad tails and have discovered that I cannot drain the system. All the rads are turned off to minimise the water loss but when I opened the drain valve nothing comes out (well just a trickle). I checked for...
    • JohnDorset
    • Thread
    • brown central central heating drain header header tank heating surface system tank won't
    • Replies: 9
    • Forum: Plumbing Jobs | The Job-board
  17. J

    water back into the header tank

    hi just had a range tribune fitted the boiler is not pressuriesd (potterton prima and i dont want to incase of leaks) when i turn off the central heating i can hear water i think going back into the header tank ,is it normal and safe thanks
  18. J

    header tank filling with hot water

    when central heating on the hot tank is filling via expansion, not a lot of heat to rads, what is problem here< blocked cold feed possibly?
  19. O

    Back boiler with no header tank

    Hi, A neighbour has asked me to look at a radiator that is cold in the middle. I assume this is a build up of sludge so was going to try draining the system and removing radiator to try and blast through with a hose or add some cleaner. When looking in the loft there is only one header tank...
  20. L

    Hot water in header tank

    Hi I have a woodburner connected to a gledhill thermal store. I have copied an exsiting system as close as poss. I have two radiators connected, one 3meters long x 300mmx300mm and the other 2.5 meters long x 250mmx250mm. When the pump switches on it sucks a liitle water from the header tank and...
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