Washing machine waste smelling or blocked. Water coming up in the sink.

Having trouble with washing machine smells or blocks? Here is just one of a few ways of dealing with it. Very useful if you have a long run of pipe to the soil pipe like this one.
Visit Al`s plumbing shop for parts at www.amazon.co.uk/shop/dereton33
Saved some money on plumbers fees? Use the THANKS button.
Or through Paypal using my site link www.dereton33.com/page118.html
Many thanks Al.

[@grahameblankley3813]

Hi Al As a retired appliance engineer I came across many washers with smells or blockages in my time, the one I'll all ways remember, the lady called me out, washer wasn't draining off, after checking all the usual things I took the waste hose off the m/c, it was blocked with fat from a duck she had drained down the sink which went into m/c drain hose and set solid when cold ! From Coventry 👍.

[@dereton33]

Ha ha, great story Grahame.

[@markdavies794]

I was going to post a comment cos that happened to me! I worked it out and cleaned the fat from the washing machine drain pipe.

[@mol101]

Thank you for a clear explanation. I won't attempt this myself but at least I know if the plumber has got the right idea. 😊

[@dereton33]

You are welcome!

[@sallygreenhead9708]

Thank you for sharing, I’ve just found this to be the cause of the horrible smells I’m getting the kitchen. Now to find someone to fix it.

[@dereton33]

You are so welcome!

[@jademodeste7639]

you absolute legend, you saved me tonight.. thanks for the tips!

[@dereton33]

No problem 👍

[@neilthurgate3417]

I found out what I needed to know in this one, thanks !

[@dereton33]

No problem 😊

[@pb9926]

Good job Al, apart from the drawings 😬😁 stay safe mate 👍

[@dereton33]

Thanks 👍 I agree they are bad. Ha ha.

[@ratchriat1716]

still I believe al the best practice is having a independent waste

[@dereton33]

Most certainly is Ratch. Keep well mate.

[@WorldOfMikeThePartworkWrangler]

Wow awesome device that’s really good

[@dereton33]

I love it

[@firstmatepegboot2589]

did something similar, thanks for the help. (this is the 4th time i've "fixed" this problem.) but i finally got a vent and i feel confident about the fix this time. (crossing fingers)

[@dereton33]

Great.

[@safinasliving]

Too good information👍

[@dereton33]

Thanks and welcome

[@sophied4031]

Handy vid first of many thanks!

[@dereton33]

Very welcome!

[@tonyboyhume3878]

excellent. very helpful

[@dereton33]

Glad it was helpful!

[@champzbarbz8865]

Thank you ❤

[@dereton33]

You're welcome 😊

[@jhutfre4855]

Thanks!

[@dereton33]

No problem!

[@user-ic7mv6bj4w]

I just did it. It was gross but happy to get rid of all the gunk.

[@dereton33]

Well done.

[@CarlieRaves]

Thank u 😁

[@dereton33]

No problem 😊

[@leenilsson1544]

Great video. We have a waste pipe on the opposite side of the kitchen to the sink. We put a new kitchen in now the wastw pipe is smelling. On the floor about 6 inches from the pipe wws a hole in the floor with a black ribbed pipe. I tiled over it, do you think that was some sort of air i let to stop it smelling?

[@dereton33]

That would have been the air inlet. To help water run away.

[@EMVelez]

Really odd that the only tutorials I can find on this topic are all from British guys 🤔. I’m in California.

[@dereton33]

We are your cousins after all. Ha ha.

[@ceri1207]

Thank you for this. I have a standpipe with a P trap at the bottom draining the dishwasher with the waste pipe just loosely hanging in a loop in the standpipe. There seems to be bad smells coming the dishwasher although not from inside the dishwasher itself but seems to be from the plumbing behind. Do you know what the problem might be?

[@dereton33]

The stand pipe could be passing smells up from the water left in the trap.

[@naminhabolsamala3062]

Nice video . What type of cleaner can I use to avoid this blockage?? Many thanks nice weekend !

[@dereton33]

Nice boiling water from a kettle.

[@CorvusCoroneCanisLupusSawel]

Don't think I can do this as the trap also incorporates the boiler condensate pipe. The plumbers who fitted the new kitchen, bathroom and boiler really did a crap job, could have done better myself. The pipework under the kitchen sink looks like a jungle. Just a quck one, Al. When I empty my washing machine pump filter at the bottom front of my washer, I get about a pint of water. I shouldn't be getting that much, should I? Clothes are spun fine, no excess water in them. Cheers!

[@dereton33]

Some machines do have that much water depending where the filter is.

[@magic1968]

Can you give me some advice please? My washing smells I've cleaned the drum using bleach and white vinegar on a boil wash it seems to work for a few washes then the smell comes back. Ive checked and cleaned the waste pipe but I noticed a pool of water in the drum after the washer wasn't used for a week. I have the same setup as in your first drawing. Is it possible the waste sink water is flowing down the washer waste and settling in the drum? Cheers Steve.

[@dereton33]

Yes it is a small amount running back

[@magic1968]

@@dereton33 thanks for getting back to me I'll try moving the washing machine waste further down the waste pipe using a drain out kit and blanking off the trap. Thanks again for your help 😉👍

[@therealdrof]

Can't understand why these washing machine tee pieces are even used, they connect on the wrong side of the trap. Getting smells from the drain from the WM and DW so definitely going to replumb as per the vid, cheers.

[@dereton33]

No problem Chris.

[@braderrzzzz]

Hi, a quick question. You know the drainage pipe from the washing machine, that should expel water from the washing machine out the wall once the washing machine is being drained. My washing machine has had a really bad smell so I decided to get a new one, I disconnected the old washing machine so the washing machine waste pipe isn’t connected right now until I get a new one. It appears the water from the sink is going into the washing machine drainage pipe... is this supposed to happen? And is this why my washing machine had a pungent smell and wasn’t draining properly? If you could help would be perfect!

[@dereton33]

If the non return valve on your old machine was broken , then yes.

[@markdavies794]

On my combi boiler there is a plastic pipe going to the kitchen sink waste pipe but it is after the trap and does not have it's own trap so sometimes I get stinky drain smell from my boiler, not sure how to sort that.

[@dereton33]

Try making up a small trap from 22 mm plastic bends

[@sarahh9186]

Hi Al, Hope you can help? I have a washing machine that has a standpipe and for the past few weeks the clothes in the washing machine are starting to smell of rotten eggs. I've cleaned the filter, checked around the seal and done a boil wash but with no luck. Recently i've noticed my toilet is starting to smell too, not sure if its related? Can you please advise?

[@dereton33]

Yes, absolutely. You will have a partially blocked drain.

[@jingtancong5095]

A quick question, the straight nozzle which is used to connect appliance, is there a way to connect 2 machines onto it?

[@dereton33]

You can buy a separate nozzle piece that takes two items.

[@justinabearman14]

Hiya I've got a drain company coming out tomorrow. The toilet manhole drain is nice and clear for once( I've been here 10 years and have had it bunged up right to the top about 5 times now) anyway my main problem is my dirty water from the washing machine is coming up into my sink. Is it a big drain job? I've unscrewed my u bend and that's clear. Thanks x

[@dereton33]

It will be a blockage in the sink waste pipe it tees into, I always use a pressure gun to clear them.

[@BazzSelby]

I have one of those little buggers, and not only does my sink fill up, but I'm positive that some of it then drains back into the washing machine? As I type, my kitchen is flooded. Ha! I've had a blocked soil pipe, in the past, and I think I've issues with it, again? But I've always thought that washing machines had a valve that stopped water backflowing into it, from the hose?

[@dereton33]

They do but sometimes the powder jams them open.

[@FDCLDN]

@@dereton33 Do you know what that part is called? My washing machine keeps filling up with water when i use kitchen sink. Cheers

[@stevendouglas3860]

Can you buy a Air admittance valve separately and are they different sizes 32mm 40mm etc . From Toolstation / Screwfix . And and it to my U bend / washing machine U-bend Thanks 👍

[@dereton33]

Yes and yes

[@stevendouglas3860]

@@dereton33 thanks Al . I'll look into it

[@loafersheffield]

Yes, yes and yes. They sell a kit including adapters that allows you to convert from 2", 1 1/2" to 1 /1/4".

[@stevendouglas3860]

@@loafersheffield any links ....and shops

[@loafersheffield]

@@stevendouglas3860 42968 screwfix code. It's abs and will only glue to abs waste pipe. If your existing waste pipework is pushfit, it wont work. They are not compatible, so you'll need to buy a waste compression fitting, like the one Al used in this upload as a transitional fitting.

[@waynekerrr9027]

Hi Al..have you got a link to one of these..thanks..

[@dereton33]

If you go to my Amazon shop then yes.

[@chrisread2265]

hi can you help me please i have got water coming up in the kichen sink from the washing machine when it drains what is it please thanks

[@dereton33]

The sink waste is blocked.

[@sunilx9729]

👌👌👌

[@dereton33]

Great 👍

[@bluejay1975]

I've just fitted a sink im having trouble with my p trap the waste pipe keeps falling out of the back what can I do

[@dereton33]

Renew the rubber seal at the back.

[@bluejay1975]

@@dereton33 I did that goes in and and Tightens then later it comes out

[@MrMassivefavour]

After disconnecting an old washing machine and clearing out the the washing machine drain pipe stub thing from under the sink I've noticed that when I empty the sink, the water blasts out of the washing machine drain stub thing. I'm thinking, once I connect the new washing machine drainage pipe, will waste water from the sink blast out of the stub as its doing now and go down the washing machine drain hose and into my new washing machine ?

[@dereton33]

No the washing machine is fitted with a non return valve.

[@MrMassivefavour]

@@dereton33 Great. Thanks for thst

[@nigussiem1253]

Thanks for the video, but can you give some ideas why the water reverses back?

[@dereton33]

A blockage.

[@nigussiem1253]

@@dereton33 thank you so much for your fast response and I will check that today. 👍 I will use some products to clean it

[@edkoner]

We’ve been getting this on/off for years. But it’s when the toilets been flushed or emptying the bathroom sink, then the smell comes from behind the washer. Plumber doesn’t know how to fix this.

[@loafersheffield]

What do you mean by "washer"? Do you mean washing machine? Trap seal loss is usually due to suction of one appliance or piece of sanitaryware running in common with others. Ideally, each piece of sanitaryware ( toilet, basin, bath,shower, wash mac, shower tray, sink, etc) should have it's own separate run, but it's not always possible. That's where aav's come in as useful. If waste pipe runs terminate in hoppers outside the house where the roof surface discharge pies run in common, this is not usually a problem. If you have an internal soil stack, boxed in, inside the house, common in newer properties, I'd try and find the vent part of the 4" pipe. It may well be the case that whomsoever installed the plumbing did not even put a vent section in, nor soil AAV in. That may explain why you're getting trap seal loss.

[@dereton33]

Thanks for the reply Loafer. Keep well mate.

[@loafersheffield]

@@dereton33 Yeah, you too (p)al. Sincerely. Really testing times.

[@edkoner]

loafer sheffield yes, the washing machine. The waste pipe is behind it & I’m sure it’s connected with the shower & bathroom sink & maybe the toilet. Cos it’s next door to the bathroom

[@elainefisher747]

Can this happen if one has a dishwasher and not a washing machine please.

[@dereton33]

Yes.

[@kryptoniteee]

Why is it happening now after 20 years it was fine all this time. Why do I need to change things when the problem hasn’t happened before.

[@dereton33]

Waste pipes block up. It`s a fact of life.