r/ukplumbing

Nasty smell coming from sink and washing machine ?
▲ 5 r/ukplumbing+1 crossposts

Nasty smell coming from sink and washing machine ?

Hi,

I have nasty sewer-like smell, coming only from kitchen sink and washing machine. Can someone help me to at least get an idea what this could be ? I am looking for a professional plumber but still want to understand what it might be and how much it would potentially cost.

It was fine before, then all of a sudden it started to smell. I tried putting some drain cleaner down, didn't help.

I don't think it's the trap as I took it apart and cleaned it.

Thanks.

By the way if you're a plumber in Lincoln, and available at some point next week please let me know.

u/void1101 — 5 days ago
▲ 2 r/ukplumbing+1 crossposts

No heating - MA1 actuator not moving - valve not seized - HW fine but interrupted if UP2 HW switched on

I have the following setup:

  • Glow-worm 30R regular boiler
  • Hot water cylinder with cylinder thermostat
  • British Gas UP2 programmer (Invensys)
  • Honeywell T6360B1028 mechanical room thermostat
  • Drayton MA1 3-port motorised valve

The problem:

System was fine before summer. No work was done. Now, central heating isn’t working. With heating ON at the UP2 and the room thermostat turned up to 30°C, the MA1 actuator remains at W (hot water position). No movement, motor noise, pump activity or boiler ignition

Hot water works, but behaves strangely:

  • If heating is already ON at the UP2, the boiler won’t initially ignite for HW if it is switched from off to on, even with the cylinder thermostat calling.
  • Switching heating OFF allows the boiler to ignite and heat the cylinder for HW on.
  • Once the boiler has ignited for hot water, I can toggle heating ON/OFF without interrupting it.

What I’ve checked:

  1. Replaced the MA1 actuator head with a second-hand unit — identical symptoms.
  2. Tested both actuator heads detached from the brass valve body but electrically connected — neither moves, ruling out a seized valve spindle as the cause of no movement.
  3. Honeywell room thermostat clicks normally.
  4. Continuity between thermostat terminals 1 and 3 is present only when the thermostat is turned up (tested with wiring still connected).
  5. UP2 heating and hot water indicator lights operate normally.
  6. Confirmed UP2 terminal 4 (CH ON) has a red wire connected.
  7. System worked perfectly last winter. No wiring or controls have been changed over summer.

Current suspicion:
Possibly a failed UP2 heating output, a wiring/connection fault, or missing heating demand reaching the MA1 white wire.
I have a multimeter but haven’t yet measured the live control outputs. And it's only CAT2 up to 300V, apparently I need a CAT 3?
Questions:
Does this sound like a faulty UP2 programmer or something else in the Y-plan control circuit? Could the unusual hot water behaviour be related to the missing heating demand?
Any advice on narrowing down the fault would be appreciated before I start replacing more parts or just call an electrician/plumber.

u/integralofetothex2 — 5 days ago
▲ 0 r/ukplumbing+1 crossposts

Airing Cupboard Spaghetti!

Could someone help me decifier the attched. My main uncertainty is around what the 3 taps below the pump are for? Which ones should be open or closed etc. or only partially open etc? I'm told one is a bypass and should only be open a 1/4 turn?? What about the others? Where are the pipes A - I coming from / going to?

u/Vitruvian_Gamer — 5 days ago
▲ 1 r/ukplumbing+1 crossposts

Anyone able to help?

I’m researching how self-employed tradespeople deal with quotes, invoices and getting paid, because I’ve heard it’s a pain. I’m not selling anything. I’m trying to understand the problem properly before I build anything.

A few questions if you’ve got a minute:

  1. How do you invoice right now (paper, Word, app, WhatsApp)?
  2. When do you usually do it, straight after the job or in the evening?
  3. How long do customers typically take to pay, and what do you do when they don’t?
  4. What’s the most annoying part?

Happy to answer in the comments, or I’ll buy you a coffee (or send a few quid) if you’d rather have a 10-minute chat. Thanks, and I’ll share what I learn.

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u/cashyamss — 7 days ago

Need help with electrical shower

Triton t80 enrich. I’ve installed it however the water isn’t heating and it’s only cold water that is coming out. What may be the issue ? The first pic is the one that got replaced and the second picture is the new one.

u/XvaporE — 12 days ago

Mains pressure pump

Our cold feed and hot water water via combi boiler has rubbish pressure. Have checked the main stop taps are fully open. Just wondered if anyone had fitted a pump similar to the one shown and whether it had made much difference?

u/n-a1968 — 12 days ago

Condensate pipe draining into gutter

My boiler condensate pipe was already giving me issues last winter freezing up as it's a pretty straight run to the gutter. I've had a new roof fitted and wondering what I can do/get someone to do while the scaffolding is still there?

u/NecessarySpare4930 — 11 days ago
▲ 3 r/ukplumbing+1 crossposts

(UK) thermostat controller wiring

Hello chaps, was dismantling a a shoddy wardrobe that was built around the boiler in our new house. Long story short there was a piece of wood that was supported by a single screw, it fell and ripped the wiring from the controller to the boiler. Boiler side of the wiring is fine but the wiring from the controller has been ripped out. Any clue where these wires may go? Looked online to no success really. Help!

Power is isolated from fuse board

Pic1, mains supply cable is on the right. left side cable, blue, brown, grey, black and ground going to the boiler.

Pic 2 small wiring diagram for the thermostat controller

Pic 3 wiring going into the boiler from the severed connection.

Pic 4 additional wiring on rhs of control panel on boiler

Pic 5 connections

Pic 6 model of boiler

u/Special-Variety743 — 11 days ago

Blocked condensate pipe - food waste likely problem.

I've a new build where the condensate pipe runs through the wall in the kitchen and then meets the waste pipe under the sink. Last year we had someone push through all the accumulated gunk out of this, clearing the blockage. We're having the same problem this year with the boiler's condensate trap filling up causing an ignition lockout.

What would the best way be to tackle this fitting, especially if I'd need to take it out and clear out more gunk again?

What chemicals could I pour through the pipe to dissolve any gunk?

u/Rensakuken — 12 days ago

Strange mixed advice from multiple plumbers

I currently have a vented indirect feed hot water cylinder which is leaking into flats below, I have had several plumbers over to give quotes for replacing it.

However there is an odd variation in the advice being given. One of the plumbers also offered to install a cut-off valve that would prevent the cold water tank feeding the boiler and then the hot water tank, which would allow me to keep the cold water on without water getting into the leaky cylinder. However when I mentioned it to one of the others they said this was dangerous and illegal because the law requires the boiler to be able to feed back into the cold water tank (and have a vent at the other end) to reduce any risk of pressure building up.

Can anyone clarify which is right?

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u/Hyphz — 12 days ago

Pipes keep popping off…

Hello,

So I’ve been trying to fit a mixer tap similar to this and it don’t seem to matter what I do the pipes at back either leak or completely pop off

I’ve tried replacing the pipes, tape on the
Olive rings, using the old fits etc…

And it don’t seem to matter how I do it either pops off or leaks

Any advice?

u/Less-Jellyfish2238 — 12 days ago
▲ 2 r/ukplumbing+1 crossposts

MLP Gas

Hey guys, currently doing my Gas qualification, its a year long roughly.

Just curious what you all think with how things are going fuel wise in the UK.

Do you think there will be a shortage of Gas Engineers in the UK? Will we ever see Gas being quickly phased out as a heating source?

Are you better learning Air Source heat pumps in the future?

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u/ExploringTheMind123 — 11 days ago

Combi Boiler - Initally very hot water before settling

Wonder if anyone would be able to help. I have a Bosch Greenstar Boiler (GR8700iW 30C) and have noticed something and want to know if it's normal or if there's a way to fix it. When using hot water from a completely cold system, the hot water (on the display) goes to about 70-75 degrees (sometimes close to 80) and a slug of hot water comes up from the tap. The flame then turns off and output settles and stays at the set 50 degrees without any issues.

Is this normal for a combi boiler? For context it's almost 4 years old and I think our building has relatively low mains pressure. Appreciate if someone with more knowledge than I could help :-).

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u/adrian11122 — 11 days ago

Can this be fixed?

Heated towel rail in bathroom seems to be leaking and is making a mess. Just wondering if there's any chance of repairing this or if I'm realistically looking at having to replace it? Looks like corrosion maybe? No idea how old it is, but it's at least 12 years.

u/paradroid78 — 11 days ago
▲ 3 r/ukplumbing+1 crossposts

Shower pump guidance

Hello. I have this shower pump that doesn’t kick in when I turn the shower to cold. I contacted Stuart turner and they said ::: “ Unfortunately, the current installation is not correct. Please see the correct installation requirements below.
The pump appears to be connected from the top of the hot water cylinder via the vent pipe. This is not suitable, as connecting from the vent pipe increases the risk of hot air being drawn into the pump. A suitable flange should be fitted to provide the correct dedicated hot water supply to the pump. Once you make corrections monitor the pump and see you facing same issue or not
You need two Y inline strainers on inlets.
 
Kind regards,”

 Does this seem correct ?

u/ElectionNo849 — 11 days ago

Inline drain off leaking

Hi all! After using this ancient drain off to work on some rads plumbing above, this has developed a double drip: 1) the valve doesn't shut, leaving a fairly steady drip-dribble from the drain (hence why I've reconnected the hose). I can't nip the valve stem up any further. 2) the screw valve itself leaks a tiny bit from the threads round the stem, despite me wrapping some PTFE round the threads before screwing it back up. I'm not confident I can readily replace the whole body, because it's inline and I'm currently not feeling much play at all. Is leaving it in situ but pulling the stem out and replacing it with a stem from another fitting (or any rubber washers inside, etc) maybe an option?

u/NovaLeganto — 12 days ago
▲ 2 r/ukplumbing+1 crossposts

Radiator key

Hi,

I'm trying to bleed an older radiator and can't for the life of me very the value open.

Anyone have any ideas of the type of key I need? Trued 4, 4.5, 5, 5.5, 6 mm hex sockets, the "standard" key, and other bit.

u/ColinCookie — 11 days ago

First-fixing pipework for radiators before they arrive?

We’ve got Milano Windsor 3-column radiators from BestHeating on order with the floor-mounting feet, but we ordered late and didn’t realise the lead time.
We need to get the carpets/floors finished before we move in, so waiting for the radiators to arrive would put the programme at risk. The plumber has the manufacturer drawings and confirmed pipe-centre measurements, so the plan is to set/drill the pipe positions beforehand.

BestHeating have confirmed the radiators sit 22mm off the finished wall and the tapping centre is 74mm from the wall, even with the feet. We’re just checking how that works with the existing skirting boards, as they may project into that 22mm gap.

Has anyone fitted these and first-fixed from the supplied dimensions before the radiators arrived? Would you be comfortable doing it this way?

Is this just a terrible idea?

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u/HawkInternational850 — 12 days ago

Ancient ballcock leaking - where do I start?

This ballcock is leaking. Is a direct swap the only option here? It's almost impossible to access due to being right in the top of a cupboard, and I don't think I'll be able to get on the nut with the limescale.

Even if I could, I think I'd need to disconnect the boiler header tank's ballcock too to be able to pull the mains feed away, which is possibly another can of worms.

The overflow next to it also looks near to failure, but the nut is buried under years of limescale so I doubt I'll be able to get it off.

What can I do?

It's causing the outside brickwork to be saturated - the overflow points upwards out the house so the water flows back and absorbs into the brick.

u/Square_Twist28 — 12 days ago
▲ 5 r/ukplumbing+1 crossposts

Plumbing NVQ Question UK

My son has his plumbing diploma (City & Guilds 6035-02 Level 2 Plumbing) and is now looking into his NVQ.

Is there anyone here that’s recently done this and could explain how it works. He is currently looking for work but most places are asking for an NVQ qualification.

We’re in Birmingham.

Thanks

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u/OwnBorder6845 — 12 days ago