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Recent contents Top users
  1. R

    Central Heating Return Pipe for Magna Clean

    Evening all, I want to install a Magna Clean onto my CH system, I am of the understanding that it needs to be installed on the return pipe. However I don't know which pipe is what in my airing cupboard and need help to identify. I am unable to install it near my boiler unfortunately due to...
  2. E

    Tool to undo the non return valves on shower mixer?

    I am trying to undo the non return valves on my shower to clean them but they won't budge, I guess there is a tool for doing this but can't find one on line - help would be appreciated! It's basically a very wide slot but my largest screwdriver does not do the trick, the maintenance...
  3. J

    Firebird Condensing Oil Boiler Flow / Return?

    Hi all, I am new here and a capable plumbing DIYr. I have just purchased a Fire Bird Silver Boiler House model to replace my old and now leaking Worchester Bosch oil Boiler. The oil condensing boiler instructions have no reference regarding the flow and return connections!! Nor are they...
    • JC22024
    • Thread
    • boiler flow oil boiler return
    • Replies: 10
    • Forum: Boilers
  4. B

    Hot radiator return pipes but warm flow pipes

    Although my CH radiators are hot to touch eventually, I have noticed that one in the downstairs sitting room and probably one of the last to get really hot, has a warm flow pipe and a very hot return pipe. The same applies to some of my other radiators but not all. Is this a balancing issue...
  5. Lidds82

    S plan return back feed??Hi

    Hello everyone my first post so here go's. I have a combi boiler heating system which is zoned for upstairs and downstairs rads. I have noticed that when only one of the zones is calling for heat and the other one is not, the rad circuit that is off is getting luke warm. It seems that the...
  6. R

    Flow and no return

    My Son has a problem with rads not getting hot and we think it may be caused by either the flow or return pipework. He has 2 rad on his living room one is hot and one is cold. Fig 1 is how the pipe work is currently, both the flow and return have tee connectors feeding the rads, the first rad is...
  7. D

    How to unblock a rad feed pipe and return post partially successful fresh water flushing?

    Hi All My radiators were full of sluge/residue so I put in a flushing point and flushed then through with fresh water by connecting a mains hose to the system and then opening each rad in turn to flish through. This worked well for all the 7 radiators except 1 of them, the bathroom radiator...
  8. Riley

    S plan return.

    Plumbers from another mother. How are we all? I have an unusual sitauation whereby with the “help” of a kitchen fitter. No I joke he’s ballsed it up for me. I find myself unable to access the flow coming off a new boiler set up. I need to convert it to a twin zone S plan from an old old...
  9. J

    Motorized valve on return

    When you have your MV on the return is there any danger of the first rad on that circuit heating up?
  10. dodger421

    Gate Valve on CH Flow/Return Loop

    I’ve recently moved into a bungalow with an open vented central heating system installed in 1987 with 8mm microbore running to the 10 radiators. One of the radiators needs replacing as it’s got a small corrosion pinhole in the body and we wanted to fit a larger towel rail anyway. Having gone...
  11. J

    Secondary return

    Hi Just wondering can anyone tell me why a secondary return can not be plumbed with plastic pipe like pex or pb
  12. L

    Non return valve to mains supply

    Hi Guys. I will be fitting an outside tap in my house. Teeing off under sink and direct to outside. Should i install a non return valve on mains ?
  13. M

    Secondary return hot water

    Is secondary return hot water a form of legionella control?
  14. P

    Is there such a think as a water pipe non return valve?

    Hi, I have a shower coming from a bath mixer tap. Because the hot water is such low pressure I fitted a pump to the hot wter tank - this works fine. The problem is, the pressure of the hot water far outweighs that of the cold and if you shower for anything longer than few minutes the hot pushes...
  15. D

    Boiler return pipe rattle

    Hi all, hope everyone is doing well. I just have a quick question: I have noticed a very annoying rattle in the hot press when the stove with back boiler is on. I rattled the pipes myself to see if I could get the noise to change to no avail. I discovered the noise coming from what seems to be...
  16. B

    Secondary return pump replacement

    Hi. Limited DIYer who can replace a tap but when it comes to actual real plumbing and pipework, useless. I have a failed secondary return pump in our unvented system. The failed pump is a Lowara EBV 15-1/65U with a mechanical timer. If possible, I would like to just replace the unit with a new...
  17. P

    Heating extension - Multiple Flow / Return Tee's very close to each other

    HI, We are just finishing an extension thats been built and the heating pipework has now been run in. The pipework is for three new Rads, two column ( two rather than one big one ) and another rad in an en-suite. Pipework from original supply is all 22mm ( as per original supply ) to the first...
  18. M

    Want to install secondary hot return - need advice please

    Hello everyone! I'm finally getting to do my own bathroom renovation (spend most of my time doing everyone else's). The bathroom is on the ground floor and the hot water cylinder is at the other side of the house on the first floor. The house isn't huge but I'm sick of running the hot tap and...
  19. B

    Boiler Greenstar 30CDi return pipe cool but display says 70 - 80 degrees.

    Vented system, Worcester Bosch 30CDi, NEST control. Radiators not getting hot, or takes hours. Wanted to ask if below is a good indicator of a technical problem, rather than looking for blockages etc etc. The boiler is cycling from 45 degrees, climbing quickly (a degree a second) to 50 where it...
    • Bignose2
    • Thread
    • boiler greenstar pipe return
    • Replies: 8
    • Forum: Boilers
  20. MrGatch

    Flow/Return Colour Codes

    Are the any standard colour-codes or conventions for labeling central heating, water and gas pipes? I'm looking at insulating the pipes in my cellar and am considering marking up the flow/return and H/C water pipes as I'm going along. Appreciate that yellow is for gas and possibly red/blue for...
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