PLUMBING PROBLEM…NO WATER!! I can’t fix it!! Real World PLUMBING 

Plumbing is problem solving and this very shows that perfectly...... What would you of tried first???

Nice to see its not just me that plumbing sometimes leaves me scratching my head

I have been doing plumbing for over 50 years and once in a great while you get one that just doesn't seem to make sense. It used to drive me crazy, now I just say, " there's another one I won't ever understand". Great videos

I've had a few of these. When you take the cartidge out of the pressure reducing valve there should be a white dome on the end that you pushed with your thumb. That has come off and is stuck in the non return valve inside the pressure relief valve. If you had looked inside when you removed the pipe you would have seen it. First time it caught me out now I go straight to it.

Great honest work as always. I had an issue a few years ago where a customer had turned off the stopcock to swap over a washing machine and after opening the stopcock, had no water. Turned out that the stopcock had been fitted the wrong way round from day one, but the spring had never shut. To make matters even better, there was no stopcock in the front garden as it had been paved over, the Thames stopcock was seized and the Thames water man couldn't turn off the street as a car was parked over the main valve. To top it all off, there was a consumer unit 2 feet above the stopcock and the stopcock was fitted vertically just under the floor boards.😂 2 minutes later, a soaking wet but at least not electrocuted me, emerges triumphant...😊

The issue may have been caused by the pipework being wrong... Expansion of water from the cylinder whilst the water is sat static may have caused some back pressure against the pressure reducing valve.. The cold feed to the cylinder should have the check valve with pressure relief but that valve is sat on the balanced cold supply.. Therefore the pressure relief won't operate and the cold and hot supply is able to mix.

I've had this happen so many times the inside plastic white dome comes of the preassure reducing valve and it blocks the pipework and it happens to fit perfectly inside a 22mm push fit elbow. First time it happened it made me scratch my head just as much as you were mate. Great video keep up the great work

Had this a couple of times with megaflo unvented , normally find a white plastic "cup" has come away from the isolation valve and blocks into the strainer/pressure reducing valve

Great video Mark , I’ve had a couple of these over the years . Very frustrating when you can’t pin point the problem when it initially seems so obvious !

Great job Mark. Plumbing really is problem solving most the time. Love the classic talk about the weather to the customer lol

Been there done that mate. Some things just cannot be explained... really makes you question your own skills and sanity sometimes

very common issue on these cylinder a white cap break off the multibloc valve and blocks the entrance to the expansion valve. some with water pressure the move and water is restored but chexk the expansion valve you will.see a half a white cap

In and out. Check for a little arrow?. I think I have had 2 of these in about the last ten years. Like you, the first one took a bit of working out, but the second one I connected a pipe into a bucket from the top of the valve.

Mark every day is a learning day especially with plumbing and by the way I've been watching your channel for over 2 years every week and at the time I just started plumbing as a job I've learnt alot from you so thanks 👍

Great detective work, everyday a school day. Good viewing, great content, thanks again Mark.

Hi Mark, yep as everyone says that was a strange one, if the replacement valve guts were the same you would think the bodies would be interchangeable? 50 years around plumbing and I have not come across a problem like that, but I am always happy to learn. Well done with solving the problem and I hope all continues to be well for the customer. Have a great week and take care, regards Chris. 👍👍👍

A real head scratcher there Mark. I assume the valve has some kind of safety system that makes it fail to off or shut. As no one wants 6 to 8 par of preasure in a house plumbing. That is probably on the guts inside and has some kind of connection to the valve body maybe some kind of spring. Luckily there were isolation points to make the water shut off easier. Eitherway. Good Job Mark and the customer has the water running again.

10 mins in I'm shouting change the full valve.

A great fix be nice to know what the causes was if you find out at a later date 👍

Every day's a school day. I would've replaced the whole pressure reducing valve to start with. But good to know anyway for future anyway.

The pressure relief with built in check valve appears to be on the balanced cold.. It should be on the feed to the cylinder... The lever valve appears to be on the cold feed to the cylinder... Just an observation.

Could it have been an airlock in top section of the pipe which was released when you took the pipe off? There is no auto air bleed valve in the top section of pipe, Perhaps tapping the top section of pipe might reveal air in the top section. When you ran the cold water tap in the bathroom sink there didn't seem to be a great deal of water pressure to move an airlock along the pipe

I have this same fault right now...now i know the valve needs changing even after cleaning and inspecting the gauze..

great video for your honesty would be good to see what the issue was but shows you keep at it and you will cure it heartache during the testing i,m sure

Hi Tiff the old PRV hack saw the inside bit then when this happens again fit it so get full pressure. Then fit new valve. Very interesting video

Had the same fault around 2 months back. Changed whole body and all was good again.

Try taking safety out reckon the non return ball has snapped and will be spinning

Very strange that the problem was the actual body well done again job done

heatrae sadia NRV always have a little white bit that breaks off and blocks the valve, ive had it so many times. btw im commenting before ive watched so lets see if its that

Wow these headscratcher jobs really put stress on you (and don't look fun). Good job on the punt of changing the body too! 👏 I didn't expect it to resolve it after the new cartridge hadn't, so I was so happy and relieved for you! Quite an emotional little job that! Haha! 😂

I have had that before many time, there a of white plastic falls of PRV and gets stuck in check.

Brilliant Chanel Mark. Used to fit bathroom along time ago. Remember one job where asbestos was used as a bath panel so put everything out whilst waiting for pros to come and remove. So I know how frustrating it can be. What was your worst job ever mate.

Good job! I'm just a DIYer and would have done the same methodical steps you did.

Very strange fault there mark 😯.only thing I can think is the top of the pressure relief valve is machined matched to the body ,👍👍👍

Oi Oi Mark, I’m watching from London! Good man, I’m liking your vids for a few months and I’ve just subscribed 👌👍 Keep up the good work! 👌🙌🍻🍻🍻🍻🍻

Problem will be the little ball has snapped on the safety and it’ll be spinning in the brass body id change safety valve/non return further up reckon all you done was move the ball on re fill there was no hot

F**king hell mate....That was a bit of a head scratcher! Who'd had guessed it. I would have done exactly the same as you. As you say, it's a process of elimination. Great job Mark.👍👍

As it was just a in-line PRV and not a multiblock I would have cut it all out and put in a new lever valve and an off the shelf any brand PRV as merchants generally never carry RWC.

Everyday is a learning day !! Great vid 👍🏼👍🏼

I'd call a plumber , I find fitting taps and sealing bath difficult 😀😂

Nice one Mark

That is strange U did turn the lever valve back on to the cylinder I’m guessing as that was on before when u tested and it didn’t work

Could you have "blown flat" a splash of solder that had gotten into the piece of pipe that you checked that was previously upright and blocking the flow of water ?

Would say the pressure reducing valve is faulty. How ever had the same issue myself and it was fine but unfortunately never got to go back so don’t know what it was

I was thinking if there was a non return valve put the wrong way but yeh strange??

I would say the body is on wrong way around.. and when pressure built it, the pressure is pinning the reducing valve closed.. very strange. Get it to the shed and test it lol

I'd of removed the PRV put a straight connector JG speedfit and collected the wonga from Doris downstairs

Great channel, subscribed

Good work

Top notch mate 🤔👏😎

Hi MJ can you send me link where you get them bags from? Thanks

Nice video, Mark, and it's another of them ones. Process of elimination looks at the PRV, it's changed to no avail. Pipework, nothing, power, nothing, and you've gone through what it should make sense with. Then you're faced with what's nerby but should not have anything, that's eliminated. Then youre faced with 'what have I not looked at or done?' and you then go to do something that looks remotely to have anything to do, but you'll do it because you might as well, you're stumped. An then it's EUREKA!! Mate, I do that, then I go and have 5mins of either going through what I've done, or could do. More tie, there is always a solution, just a matter of patience and time. Sometimes, i think on something non-plumbing, and something comes to me. Sometimes, you're so in it, you don't give room in your mind for any unexpected moments, so taking 5 for me at them times helps. Seems somehow the body of the PRV leading past its point was dirty enough to cause the lack of pressure. Certainly learned from your video. I would have thought exactly how you did. 😊😊👍👍

Was the PRV a directional one could it have been put on the wrong way so stopping the direction of flow?

Was the valve made by Bristan by chance.

Hi buddy Just a quick question un related to the job… The flexi bucket, where did you get it? For years now, I’ve been using a heavy duty bin liner 😂😂 I could definitely find use for one of them.

And the lesson is, always change the whole part. :)

What is the name of the red mould thing that you use to guide the water into bucket ,thank you

Great Video mate

🤘😎🤘 Evening Buddy

When there is a theoretically impossible problem like your disappearing water - I can imagine your 'off camera' comments!! Only yesterday I fitted a radiator and when repressurising the system I could not get any pressure to register on the boiler gauge yet all rads were filled and the boiler filler had stopped filling. This morning the Customer said 2 bar was on the gauge!! Why did the gauge not register when filling? Air?

Hi Mark What make is the orange folding bucket please? And would you recommend? Cheers mate

Weird one that mate but job done 💯

Would the old body installed backward?

It is an explanation for that , could be same manufacturer, they deliberately making different body parts to make sure you can’t fix it and have to change the whole lot , this new business industry became very greedy and sometimes those tactile valves don’t open fully , better to change for lever valve , but they got those sharkbite gripping on those tactile valves , I’m not fan of them 😂 but heard the rumours they do fail often , because some of them you can open both ways either going left or right if the nut 🔩 which is holding the plastic handle worn off you might be just opening valve partially… even if it’s handle showing fully open

End of the pressure reducing valve fell off as a guess?

Next time mate by pass the strainer to confirm

12:54 go on then lad play us a tune

I had this once on a late Friday on a new valve. Was at it for 4 hrs then left it for next morning. Within 15 mins found the fault which was in the valve. It had a piece of plastic part partiallly blocking flow....brand new valve.

Are there any TMVs anywhere ?

No video upload tonight?

👍👍

Was body in back to front

If the customer is going to be build for the complete replacement parts you bought , then why not just replace everything together and save on all the unnecessary time problem solving when it proved once it was all changed it was correct.

Nrv seized

😎👍👍🤜

15 minutes 30 seconds into the video ... I would say change the body that will do it am sure

Not a plumber but shouldn't you have changed the whole thing ad standard, being as the customer will pay for the whole valve and not just part of it😮

Whats yoir views on a ratchet wrench???

Hey bud. Do you use a software system in your business and if so which one? Starting to have enough of Commusoft