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    Honeywell MOMO Divertor VC4013 - how does this work ?

    Hi there ! All the best wishes for 2024 ! I am hoping someone can help me ? I have been reading about the Honeywell MOMO Divertor valve. ( Ports A, B and AB ). I understand the valve only moves when mains power is applied - there is no spring inside this valve. There are 3 wires going to...
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    Questions on Economy 7 System

    Good Morning All I am hoping that someone can help me ? A friend of mine has move into a flat with I believe Economy 7 heating and hot water. The agent did not bother to explain how the system worked - chances are they did not know nor care ! My friend has the electric heaters switched off as...
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    Converting a V4043H1056 (NC) 2 Port Valve to a V4043B1257 2 Port Valve (NO) ??

    Hi there ! I am planning to reconfigure my domestic central heating and hot water system. I need to convert a normally closed V4043H1056 2 port valve to a normally open V4032B1257 2 port valve. I appreciate that there will be wiring changes required as the normally closed 2 port valve does not...
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    Pipework to Expansion Vessel - does water ever get into this pipework ?

    Morning All I have a quick question for you ! :) I have an external expansion vessel in my central heating system which has been t'd off the return line and has been mounted above the central heating pipework. When the system is filled I realise that there is no way to bleed the air in the...
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    Excess Flux inside Gas Pipe

    Good Morning I have a quick question for you all ! :) The other day I wiped off a very green stain from the copper gas pipe inside my house. The pipe runs to the boiler. It wiped off with a drop Brasso and there was no sign of a mark on the copper, where the green stain had been. I now...
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    Y Strainer in Incoming Water Main

    Hi there ! I was wondering would it be a good idea to install a 22mm compression Y in line strainer on the cold water main ? I appreciate to be able to remove it for cleaning that an isolating valve would be required on either side. I was thinking that this might be considered to be good...
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    Fitting a Drain Cock after the Stop Tap - Recommended ?

    Good Evening I hope that you all had a good weekend. :) I am having the cold water pipe work altered in my house. I was wondering in order to be able to drain the cold water piping in the future I was thinking about having a type A drain valve fitted after the stop tap ? There is a PRV which...
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    Plan for Revised Heating Plumbing - Appreciate any feedback

    Evening I am looking for your opinions on a plan I have in mind to have my boiler replumbed at the same time as having a smart control system installed, where all the radiators can be controlled individually using smart TRVs, removing the need for a conventional S or Y plan system, via 2x2 port...
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    1/2" Blanking Cap Vs 15mm Blanking Cap - Difference ?

    Hi there My apologies if this question is a bit daft ! I need to blank off the male threaded section of a tap connection which I believe is 1/2" BSP - please see the attached picture. I have found a 1/2" Female Blanking Cap which I think is a BSP thread which I believe will do the job...
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    Basin Tap - Does Anyone Recognise the Manufacturer ?

    Hi there ! I was wondering if anyone could help me ? I have a basin tap in my house which has zero manufacturers markings that I can see. Hence I have no idea who made it. By any chance does recognise it ? I have attached a couple of pictures. Kind Regards
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    Basin Waste - Does anyone recognise this ?

    Hi Everyone I was checking the basin waste overflows in my house ( which are all working fine ). It was then that I noticed that was something in the way of one of the slotted outlets from the basin waste - please see the black arrow in the attached picture. I have 2 bathrooms and the basin...
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    Leaking AAV

    Would you say that this AAV has been leaking at some point ? Cheers
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    Crusting Around Thermistor - is this a leak ?

    Hi I have a pressure loss from my boiler and I note that there is crusting around the thermistor - please see attached picture - is this evidence of a leak path. Many thanks in advance.
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    Vokera Mynute 20HE - External Wiring

    Morning I was wondering if some one would be able to help ? With reference to the attached diagram ( Capture ) from the Vokera manual I am confident that the wire connected to the centre terminal block in M5 is Permanent Live 240 Vac. This means that the wire connected to the left hand...
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    Solvent Welding ABS Pipe - Insert or Insert & Twist ?

    Hi Hope every one is well and staying safe. I need to modify an existing 40mm solvent pipe work and have a question. I have read that ABS fittings should have solvent applied to both the outside of the pipe and the inside of the fitting. I have also read that ABS fittings should not be...
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    Bath Trap - Optimum Water Seal

    Hi Everyone I was wondering if someone could help ? What is the optimum water seal for a bath trap ? I tried to fit a trap with a 75mm seal, but there is not sufficient space to get it in, without cutting away part of the flooring. A trap with a 50mm seal goes in fine, but I wondered if...
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    Gurgling Basin Trap - Anti Syphon Trap Fluttering ???

    Hi I have a problem with a wash hand basin. It is on the 3rd floor of the house. When you fill the basin with water and then let it go it pulls the trap. The trap was a 40mm p trap - I changed this for a 40mm McAlpine anti syphon p trap expecting this to solve the problem. Now the water in...
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    For Ianmcd - Pictures

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    Calling DP and Ianmcd - Vokera 80SP Excel - Losing Pressure

    Hi there I have a question that I would like to ask you both. I have a Vokera 80SP Excel combi boiler. Over the course of 24 hours with the CH off and no use of the HW, the pressure drops around 0.5 Bar ( 1.2 Bar to 0.7 Bar ). The system has recently been topped up with 1L of corrosion...
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