Plumbing Advice

Honeywell ST699 thermostat upgrade.. Discussion Thread

I have a fairly old Honeywell ST699 thermostat that controls the central heating and hot water on a Worcester boiler. It is in an old farmhouse which has an airing cupboard with a hot water tank. There is also a separate thermostat located near the top of the stairwell.

I'd like to upgrade it to a wireless thermostat if possible and was wondering if anyone has replaced this model. I have fitted a Nest unit before, however this...

 

Does your boiler make a vibrating, whistling, humming noise? Discussion Thread

Is your boiler making vibrating noise like kettle?, boiler making whistling noise? boiler making humming noise? boiler making load rumbling noise? boiler making gurgling noise?

You need to get a forum member in to service your boiler. Reply to this thread with your county and we will put the feelers out for you.

Does your boiler make a vibrating, whistling, humming noise? for the original thread on...

 

Baxi Platinum+ Combi Controls Discussion Thread

Hi,

To cut a very long story short, Baxi are offering me a Platinum+ 40KW Combi as an alternative to a Megaflo Cylinder that has broken down. However, they are not providing labor costs so I will need to have my own plumber undertake the works. This boiler will effectively replace a 14 year old Vailant EcoTec 637 System boiler which runs 21 radiators and a UV Megaflo.

A couple of things I wanted to ask about is what controls are...

 

Merry Christmas and Happy New Year 2025! Discussion Thread

Merry Christmas and Happy New Year 2025! - From Plumbers Talk (formerly Plumbers Forums)

It sounds like 2025 onwards we will be building houses much quicker than we have been under Conservatives. I'll stay out of the pros and cons of locations and things but the general fact more houses should be built means there will be grants to train people soon.

So watch out for dodgy training companies who have salesman, or are based...

 

A leak I cannot get to! What to do in this situation!? Discussion Thread

Hi All,
I've discovered a leak somewhere related to the cistern to a toilet upstairs which is hidden behind the tiled wall. I cannot be specific at where this leak is coming from, because the access to it is really restricted. Taking off the wall flush plate, I can get my arm into the area, and can feel that the higher pipe (feed pipe?) seems totally dry, but as I stretch around behind and under the cistern, I...

 

weather compensation suitable? Discussion Thread

Designing system for building that is only used two evenings a week (3 hours each evening) and one day of 8 hours. Temperature set at 21deg with setback of 12 deg out of hours. normally would be recommending weather compensation. But with such little use, wonder if more economical to have normal room stat and programmer. cant see that weather compensation would be of any real benefit.

weather compensation suitable? for the original...

 

Connecting to a Cold Water Pipe Discussion Thread

Hi

I have just bought a compression tee from Screwfix and need assistance on how to connect it to the existing cold wate rpipe.

Do I simply isolate the water, remove the current tap and replace the new compression tee?

Do I need a specialist tool to remove the exisiting tee?

Do I need to solder the new compression tee onto the cold water pipe, or will the olive be fine?

Does the compression tee have to be horizontal for...

 

Replace SalusRT520TX thermostat display Discussion Thread

Morning all,

Hope someone can offer some advice. I've just moved into a new flat and have the above thermostat here.

It has the receiver by the boiler all fine, but when I was messing around with the dog yesterday, ive managed to trip and hit the thermostat display...
It looks like a monitor does when you've
Hit it...

Can I buy a new thermostat and somehow pair it to the current receiver? Or do I need to have a plumber out...

 

Toilet Syphon Discussion Thread

Hi All,
My toilet Syphon stopped flushing I had a look today and it's a Derwent macdee metro. One that you can remove without taking toilet to pieces. The plastic has torn. Tried taping it together for quick fix but not made any difference. Is it a case of just replacing the plastic out do I need a new Syphon part and if so can another make fit onto it or does it need to be same make. Thanks

Toilet Syphon for the original thread on Plumbers...

 

vokera boiler (fault code A02 ) Discussion Thread

do i need to drain system for replacing a high limit thermostat on vokera boiler (fault code A02 )

vokera boiler (fault code A02 ) for the original thread on Plumbers Forums

 

50% off new tools off ebay (inc makita) till 3rd Jan 2025 Discussion Thread

50% off tools & equipment | eBay. Goodyear, Makita & more. Don't miss out. ​

Goodyear, Makita & more. Don't miss out.
www.ebay.co.uk

50% off new tools off ebay (inc makita) till 3rd Jan 2025 for the original thread on Plumbers Forums

 

Vaillant controls Discussion Thread

Hi all

I have Vaillant 624 running 3 circuits; a Telford unvented tank and then 2 hearings circuits (downstairs & 1st/2nd floor).

This is currently all run with 3x 2-port valves in and-plan+ configuration with Hive controls. I did have LLH fitted which was removed about a year ago for some trials with a 637 boiler. Now I’m thinking about getting this reinstated but also upgrading all the controls to Vaillant to utilise better modulation and...

 

Washing machine waste hose extension? Discussion Thread

Any advice on the best way to extend the hose of a washing machine folks without it being a bodge?
All the hoses I can get hold of have a bigger opening on one end which doesn’t fit on the trap spigot or the barbed connector I have?
Cheers

Washing machine waste hose extension? for the original thread on Plumbers Forums

 

I'm Angus and looking for a new boiler recommendation please. Discussion Thread

I'd like a new system boiler to replace my old Pottterton 120L which is a 35KW boiler. When it worked it was a good boiler but I noted it cycled on/off most of the time, I assume because it heated things up quickly and then switched off whilst all that heat dissipated around 14 radiators. 8 rooms, 4 bathrooms. (probably half the radiators go off quite quickly when they get to (or are already at) a 1...

 

Weather compensation, low boiler flow temp & bacteria Discussion Thread

Hi all,

I've been adjusting our combi boilers flow temperature based on outside temperature. A sort of manual weather compensation. The weather compensation curves you find go through the whole flow temp range e.g. 30-60C+ what are the risks of bacterial growth below 60C? How are people with low temp heating systems & weather compensating systems mitigating the risks of bacterial growth? Does inhibitor & magnetic...

 

How to Open a TPR Valve Discussion Thread

Temperature and Pressure Relief (TPR) valve made by Reliance.

How do you open and close it.

I believe its a twist one. Do you just twist it anti-clockwise

or do you have to pull it out a bit first

How to Open a TPR Valve for the original thread on Plumbers Forums

 

Combi boiler DHW lukewarm Discussion Thread

New ideal combi boiler 4 months after install. The DHW temperature drops to Luke warm then a few days go by then it goes back to where it was. The digital readout stays the same at 55 c the boiler pressure is constant heating is fine no other issues. Any advice.

Combi boiler DHW lukewarm for the original thread on Plumbers Forums

 

WC cubicles side by side toilets Discussion Thread

Hi All, I do DIY at a local dance hall and we have room to fit two more ladies toilets side by side.
There is an adjacent soil stack outside that I can branch into
My question is do I connect the pans to a soil pipe inside the building in line then knock through the wall and connect to the existing soil stack or know through twice and connect the two pans outside.
Thanks Les

WC cubicles side by side toilets for the original...

 

Hot water on with heating yes or no Discussion Thread

Morning like some advice we have hot water tank k for hot water and boiler for heating we can set water or central heating on at different times via our hive app what's the best both together on timer or on separate times just not sure what's best for money and boiler usage

Hot water on with heating yes or no for the original thread on Plumbers Forums

 

PLEASE AVOID - Connor Archer - AKA Neil Connors and Nico Connors Discussion Thread

PLEASE AVOID - Connor Archer - North East Area (also going by the name Neil Connors and Nico Connors) His buisness also has a varity of names on different customer quotes - Nico Plumbing and Bathroom Services, Nico Bathroom Designs, Nico Bathrooms and Plumbing.

He provided a quotation for a boiler installation and took nearly...

 

Thermal imaging camera Discussion Thread

Any of you guys have them? I’m thinking of getting one for radiators / power flush of systems. Leaking finding and heating flow diagnostics, cold spots, blockages etc

Are they worthwhile? Any recommendations for one greatly appreciated.

Thermal imaging camera for the original thread on Plumbers Forums

 

Get 400 free google ads money Discussion Thread

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Spend 400 get 400 for free. New customers only I think (so register a new email if you...

 

Riello oil pump Discussion Thread

Hi. Is it possible to repair a leaky oil pump? Or best to get replacement??

Riello oil pump for the original thread on Plumbers Forums

 

New Riello rdb oil pump not working. Discussion Thread

Hi all, all new to this breakdown life, currently waiting on getting on a training course, so just been relying on technical and instructions since I passed my oftec.

The current boiler is a two pipe line off a tiger loop.

I went to a Grant vortex boiler last week where the boiler went into lockout after its purge, the pump was only showing 2bar on the gauge, the solenoid was showing in between the allowances. The photocell was...

 

To add a Negative or Positive pump? Same level as tank but shower Discussion Thread

Hi,
Had a bathroom renovation done, new shower & bath.
Unfortunately the new shower with narrow pipes & joints, splitter tap for fixed head & removeable etc. does not have the same flow rate as the old, actually now fixed head unusable, dripples & removable barely better but can be used. Use to be direct down the wall gravity fed. Parents house, don't think pressure ever great but worked OK.

The...

 

Broken Sewer Pipe vs Clogged? Discussion Thread

Hi guys! The sinks and toilets weren’t draining and someone has told me that the pipe has broken and is asking for £13,000 to fix it, whilst I spoke to someone from Thames water today, on my way home from the shops, and he said the same issue (clogged sinks, toilets, etc) could be from a clogged pipe and that wouldn’t cost much to get fixed. The plumber posted this video of the issue but I can’t see any broken pipe.

That’s the video he...

 

Riello oil pump Discussion Thread

With a riello oil pump thats for r 40 riello burner can you fit this to rdb1 50/70sh? The solenoid nut won't reach to screw on? Any advise

Riello oil pump for the original thread on Plumbers Forums

 

Riello oil pump Discussion Thread

What is the difference between the 2 riello oil pumps that you can buy they both look the same but the only difference I can see. Where the solenoid is fitted there is a metal plate where the other doesn't.

Riello oil pump for the original thread on Plumbers Forums

 

Leaking tap, faulty cartridge? Discussion Thread

I've got a kitchen tap that leaks from the handle on the cold side only when the tap is on at medium to full blast.

can see exactly where its coming from but a fairly fast drip is coming out here

ive tried removing the cartridge, dismantling it, descaling and rebuilding it with new o rings but that didn't resolve the problem so i was going to just replace the...

 

Re pipe advice ?? Discussion Thread

Hi folks
I’ve been asked to move the washing machine valve to the right of the 2”, how would you guys advise without a press gun? Compression tee and up and over the waste is my thoughts?
Cheers

Re pipe advice ?? for the original thread on Plumbers Forums