BATHROOM PLUMBING SMELLS...Whats Wrong (I have the answer) 

"My bathroom smells of drains...can you help".... We've all had that call out. Take a look at this as i have a fix for it that works..... Drop a comment and hit subscribe

Thank you Mark for your honesty at the beginning of the video, RU-vid clips do take time. I can now see why plumbers used to have apprentices, they were slimmer than the plumbers LOL.

Good easy job, if it works. But I was wondering why you didn't try an air admittance valve on one of the waste pipes?

Great idea cutting the rubber back on those valves. I’ll have to remember that, thanks. Also, I’m with you on the Knipex pipe slice. Whilst they have the advantage of being able to get into a tighter space, the pressure that’s required to keep them pressed on the pipe can be a right killer on the hands, especially in awkward spots. I’ve still got a couple of the trusty Rothenberger ones on the van. Thanks. 👍🏻

I’ve been using the ox plastic pipe slices for over a year now and they’ve not let me down so far. 35 and 42mm ones are brilliant. I couldn’t get used to these other ones they always spiral 😂 great video 👍👍

A Fanny Trap is when you work in a beautiful looking womans house , and she thinks she is entitled to a discount...😂😅... good problem solving video Mark

I’m an Electrician (sorry) but I love watching your videos mate! You are great at what you do and what you have to deal with!

Hi Mark. Wow that’s was tight. Thats was a good solution never seen those fittings. Appreciate what ever content you put out mate don’t apologise. Have a good week 👍

Fanny for the win!!! You went balls deep on that trim down fair play

That was a very tricky fix mark .at least you managed it 👍👍👍 Sometimes you can get into those awkward places and then no room to move 😯

I thought the positive pressure was going to make one of those fanny rubbers to start making a noise like a whoopee cushion 😂😂😂

The commentary you put in your videos is 2nd to none! Keep up the great work mate! Would be privileged to meet you someday, but Macclesfield is a bit far between! Nevertheless I will avidly watch your content and wish you a very successful future in all that you do! Thank you Mark.👍👍

Good work Mark in such a confined space bet your joints were aching afterwards

How the hell did you get in there, fix the problem AND FILM IT?!?! Brilliant job mate and I've really learnt something! Cheers mark

Absolute quality....never thought of trimming diaphragm before now 👍

Hi Mark, yep that was a good solution to that problem, I hope all is still well for the customer and yourself. I think I could get in that access hatch, I have done quite a few jobs over the years that a lot of bigger plumbers just could not access. Hope you are keeping well, take care, regards Chris. 👍👍👍

Great tips. Thanks! My guess is that the shower waste wasn’t at a steep enough fall as they were trying to follow the holes in joists regs and this didn’t give water enough momentum to push through trap? But problem well solved!

Great video Mark. I’ve never seen one of those waste pipes with a condom in it but it’s a great idea and hope it fixes the problem 🙂👍. I have one of those access hatches and I could fit in it 25 years ago but not anymore 😕😂

Those silicone valves are a thing....? Damn it, I bought a inline 40mm one way straight which cost enough, not to mention fannying about. One of these in the fitting would've probably done the job. To stop smells coming from macerator and washing machine into a hand basin. Great vid showing real world situations, handy for us competent DIYers.

8:54 For this job, I would take my 6 years old: small enough to get there comfortably, old enough to follow the commands 🙂

I fit a few of the mcalpine fanny traps for pushfit d2's on unvented. Work pretty well to be fair. Although im with a lot of your commenters my first thought for this would've been a 1 1/2" durgo. I'm with you on the knipex cutter too had high hopes for it but it's awkward in tight spaces, might try the ox flex one next.

Thanks again, MJ. Ohhhh.....one of them ones. If there's a plumber or engineer having NOT experienced such circumstances, then they haven't plumbed!! Like it. 😆😆

A good fix with outside the box thinking , so well done for that if it starts backing up in the future i guess they will have clean them Hep valve things out as i had to do yesterday on 2 basins that had them instead of traps they were full of gunk but in a public toilet so much more use than domestic.

honestly brilliant vid that inline trap is so simple but effective ,ive used this but as we all know the water needs the air to fall was the aav higher than the toilet as some builders dont know to put the vent in higher

Excellent solution to solve that problem 👍

What a lovely access Door for heads only 😂😂, I’d say you where glad to finish up on that one 👍😎🤜

Glad you mentioned the pipe slicer knipex there rubbish 👍

Mcalpine do a compression inch & half T with one way valve (dergo) on the T. Works a treat for this type of problem

Nicely done but mcalpine do a non return valve that’s almost full bore might help with the shower issue

I did chuckle at the nickname for the inline trap.

Air admittance valve on the 11/2” With abit approx 1ft-2ft of pipe going up so it can breathe.

Good practice I prefer the mcalpine one-way valve

I wouldve put a solvent tee on one of the pipes and put a 40mm AAV on. Had this happen on a macerator where it was pumping up it was creating pressure and causing the pump to constanly run.

You can get through that gap. Good editing MJ, thumbs up for that.

Interesting problem. I might have tried putting an air inlet vent into either pipe to stop the suction from emptying either trap. Any smell would have been in the loft space.

Hey Mark, it can't drain properly if double-traps because the air-lock. Need a some sort of breather hole in between two traps. You can try if u got the call back😂

Good job, well done 👍

How about bossing in on the toilet soil a 40mm air admittance? So it sucks in the air and doesn’t pull the water out of the traps ? One those bosses that don’t need a strap ? Love watching your stuff mate

Really enjoyed that Mark. Great video.

Fit a air admittance valve

Great vid , fellow plumber and people are amazed at how us bigger plumbers get in tight spaces 😂 it’s called experience 👍🏼 Just a query Do you prefer the Fanny traps over the McAlpine non return valves as they seem to be cheaper ?

Hi mark, thanks for all the great content, have you got a link for the folding bucket you’ve used in previous videos please? Thanks 🙏

I reckon an air admittance valve bossed into the 110 would have been a better option (or into one of the 40mm). No restricting the waste flow either 😀

Could also try a 40mm air admittance valve, fanny trap should to the job👍

That’s when you need to ask Nick if you can borrow Peggy to get in the right space 🤣

Dan (central heatking) would have fitted through that hatch!

Evening Mark 🤘😎🤘🫖☕️🍪🎥👍👍

Hi Mark, I'm asking this question to learn some more, would it not have worked if you put an air admittance valve near that T for the bath and shower so it doesn't pull the air from the traps? Or is that not the right way to fix that?

Fanny trap. How do you check for leaks? Throw some flour on and aim for the damp patch? You met my missus? (Bernard Manning. Chubby Brown) Coat ------> Door.

If you had full access to everything, what can be done to stop the traps being sucked away?

Hi @MJTiffPlumbing. Could you provide a link to the inline trap you used, please? Would be appreciated

Mate did a job in a grade 2, loft where both tanks were was crawl only, when I got to the water tank at the end there was a hornets nest about 2ft across thankfully dead, if it was live I would have been dead as there is no way I would have got out backwards going ape shit

Mark instead of using them rubbish traps should have installed non return valves there much better. They have a flap instead of them rubber

Thanks for that, Mark: no job too small, no fanny too tight… Best not put that on the next batch of T-shirts! I’m guessing the existing shower and bath wastes are low profile jobs so more susceptible to getting syphoned out.

Is there a reason you went for an in line trap rather than a non-return valve. Ive always went with the non-return but shall keep the trap in mind

Could the issue have been the fall of the wastes and connections were poor?

Apprentice is what you need

Could you not get a durgo into soil stack mate?

I think the original installer could have done more to improve the drainage into that soil stack by fitting an air admittance valve in a suitable location and piping the waste separately into the soil stack boss. It would've been interesting to see if that stack was vented to atmosphere or just piped directly into the toilet without any kind of venting.

Doesn’t help with that specific tray it states not to use a flexi on the waste and 90% of the ones I see when I’ve been doing pipework in the ceiling void below the fitter always seems to use a flexi lol

🤘🏻🤘🏻

Wow you are going to have lots of bruises where your body was next to the hatch opening.

Ridiculous no space to move

Been there bloody crawl spaces did you not know you have to be a contortionist aswell as a plumber for some jobs an woman say we can’t multi task