Cleaning grey water tank and pipes

[Jocko]

Hello.

(I imagine this post had already been published but I can't find any answers)

The grey tank and pipes are smelling. I've flushed it through with fresh water but it needs a proper clean through.

I've bought some vinegar and bicarbonate of soda as I've read that can work. Does anyone know the ratio to use of this as has it worked for them?

Or, does anybody have any other suggestions please that'll do the job?

Thanks
Jocko

 

[Ralph-n-Bev]

I’ve heard people put cheap coke in the tanks and go for a drive.
We use Milton every now and then in ours .

 

[GJH]

I use this after each trip https://www.busterplugholes.co.uk/product/clean-and-fresh-granules/

 

[Landy Andy]

Leave mine open to air. Soon dries out and no smell.

 

[Two on Tour]

When we bought the PVC we had, the grey waste was very slow to empty and needed a stick poked up the drain down pipe on occasions.
I tried the cheap coke method and it worked well. I poured in 8 litres of cheap Aldi coke and went for a 20 mile drive around our local bumpy and twisty country lanes and this is what I got out of the grey tank when I drained the coke out.

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[Diabalo]

I put a good dose of bio washing powder/liquid down the plug holes now and then and that seems to work ok. The other thing to do is to keep the plugs in while traveling.

 

[Shrimp]

Last time we did ours we used a Dish washing machine cleaner & water, put it into tank before we went away and let it go after a long drive. Got quite a lot of ’stuff‘ out of tank!

 

[Mr porky]

We are lucky that on the morelo it has an attachment that you connect to a hosepipe which allows you to rinse out the black or grey tank. We still throw a bit of Milton down every now and again though.

 

[Richard n Ann]

On our way home from Spain every morning I put a dissolved dishwasher tab down the plug hole with a gallon of hot water, at the first nights stop the water is gharstly with lumps and everything coming out but by night 3 it's clean

 

[Lenny HB]

Despite the dozens of posts a out using coke and other things we have found the only suff that really works is the Thetford waste tank cleaner but I see they have changed the product now and market a duo tank cleaner.
Next best thing is bio washing liquid.

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[Eggs]

When we bought the PVC we had, the grey waste was very slow to empty and needed a stick poked up the drain down pipe on occasions.
I tried the cheap coke method and it worked well. I poured in 8 litres of cheap Aldi coke and went for a 20 mile drive around our local bumpy and twisty country lanes and this is what I got out of the grey tank when I drained the coke out.

View attachment 469372

View attachment 469373

That's full of FOGS, fat oils and grease. The stuff no one I've ever met puts down the drain... Nearly 30 years a drains-man.

Bio liquid here.

 

[Two on Tour]

That's full of FOGS, fat oils and grease. The stuff no one I've ever met puts down the drain... Nearly 30 years a drains-man.

Bio liquid here.

We don't, but obviously the previous owner had, but it proves that cheap coke works does it not.

 

[Jocko]

Thanks for all the helpful suggestions and experiences. Now for my dumb input. When people mention bio washing liquid, do they mean washing up liquid or clothes washing detergent? Next dumb question from me is, Is all laundry detergent biological except obviously those stating non bio as I've recently started using the cheaper laundry detergent for my toilet cassette but It doesn't state bio on the front, I'm just presuming it's bio.

Thanks again

 

[Diabalo]

Thanks for all the helpful suggestions and experiences. Now for my dumb input. When people mention bio washing liquid, do they mean washing up liquid or clothes washing detergent? Next dumb question from me is, Is all laundry detergent biological except obviously those stating non bio as I've recently started using the cheaper laundry detergent for my toilet cassette but It doesn't state bio on the front, I'm just presuming it's bio.

Thanks again

Yes laundry bio for both

 

[Lenny HB]

Thanks for all the helpful suggestions and experiences. Now for my dumb input. When people mention bio washing liquid, do they mean washing up liquid or clothes washing detergent? Next dumb question from me is, Is all laundry detergent biological except obviously those stating non bio as I've recently started using the cheaper laundry detergent for my toilet cassette but It doesn't state bio on the front, I'm just presuming it's bio.

Thanks again

The laundry one, Bio normally in green bottle or bottles with green tops.

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[TheBig1]

Bio clothes washing liquid, the cheap Aldi or Lidl one

 

[MITHRANDIR]

I use puriclean powder for sanitising the fresh water tank, twice a year, i drain it into the grey water tank via the taps till full, drive for 20 mins, leave for 24hrs and drain, you would be surprised what comes out, never had any smells at all.
2 tanks cleaned for the price of one

used to use milton years ago, with the same method, but be aware its corrosive for the boiler, guess how i know

 

[DaveKerry]

I've always thought of the sticky residue the coke leaves if not cleaned away properly, so this just makes me think of the same residue in the pipes and tank. For me this residue provides a place for unwanted bacteria to get a hold and multiply, leading to a smell.
I used puriclean for the fresh and the grey tank, the fresh was fine but the grey had a sulphite type of smell after about 2 months, so I too am looking for ideas for the grey tank.

Looking forward to being let out in my moho again.

Dave

 

[Four of us]

I picked up the idea on here of using a dissolved dishwasher tablet with a bucket of very hot water and that worked for us...

 

[Stealaway]

As above.

You can also add some Zoflora to it once you have flushed it out with the dishwasher tablets.

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[WESTY66]

What he said

 

[M-J]

We had this problem a couple of summers ago, solved with Elsan Tank Fresh and now use what’s left to put a glug down every now and again...

Elsan Grey Water 2 ltr Tank Freshener

Elsan Grey Water Tank Freshener 2 ltr prevents unpleasant smells from sinks, showers and drains.

www.worldofcamping.co.uk