Grey waste smell

Discussion in 'Top Tips & Tricks' started by Diabalo, Apr 18, 2009.

  1. Diabalo

    Diabalo Funster

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    Anyone got any tips on elliminating grey waste tank smell.

    Do shower trays have waste traps fitted? The reason I am asking is that after we arrive on site the shower/loo room is a bit niffy. I am sure it's not the loo causing the smell but the grey waste tank. I always empty as much as I can but due to the way the van may be leaning it is not always possible to drain completely. It doesn't smell when setting off so I am assuming whats in there once agitated by the motion causes the smell.

    Has anyone tried the Thetford tank freshner, or is it just disinfectant?
     
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  2. Brisey

    Brisey Funster Life Member

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    Hi Dane

    We use BioMagic to get rid of nasty grey tank smells. We empty the grey tank and then pour in some BioMagic with a few litres of water. We then take the van for a run to let the solution slosh about a bit. We leave it overnight and then drain down again the next morning. When empty we leave our waste tank drain tap open to let air circulate.
    Hope this helps

    Brisey
     
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  3. Pat4Neil

    Pat4Neil Read Only Funster

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    HI Dane & Hazel,

    You have smelly waste do you,

    We have used that tank refresher, I think it is more of a deodoriser, but it stops the smell. We sometime but it in the tank and fill it up and take if the a drive down the road, which agitates it, and left it in for a couple of days.

    In the past whilst it was very hot we did use a mild washing bleach and did the same. I know it not environment friendly, but the smell wasnt either.

    Pat
     
  4. moandick

    moandick Read Only Funster

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    In most American RV's equipped with all-weather protection covers fitted over their rooflights, it is possible to safely travel with the roof lights wide open and that in itself can cause a problem whereby nasty smells are drawn back into the RV from the wind turbulence surrounding the 'loo' tank breather pipes.

    Not quite the same in a European motorhome - but we found that the easiest way to counteract the nasty 'niffs' was simply to leave the bowl or basin 'plug' in all the time, especially when travelling. On arrival you put a couple of pints of fresh water into the bowl or basin BEFORE you remove the plug - then when you do remove the plug, the fresh water replaces that water trapped in the 'u' bend and you don't get the nasty smell.

    Alternatively, you can go to the nearest caravan dealers and pay a huge amount of money for a bottle of perfumed water to replace the 'plug'.
     
    Last edited: Apr 18, 2009
  5. Douglas

    Douglas Read Only Funster

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    Keep the plugs in the shower tray and sink, it works every time!

    Doug...
     
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  6. GJH

    GJH Funster Life Member

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    When we are on camp sites with showers/washing up sinks we don't "generate" very much grey waste. At rallies/ECWS events where we use onboard facilities much more I empty the grey tank daily. We always try to make sure we don't let bits of food go down the waste pipe.

    Either way after we get back home I use Buster Kitchen Sink Fresh down all three waste pipes (sink, washbasin & shower). Started using it after seeing a test report in a magazine. Could probably save a bit by using a generic oxy type cleaner but it doesn't cost all that much.

    Graham
     
  7. Terry

    Terry Funster

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    SWMBO, drinks black tea so we always use a mixture of bleach & washing up liquid which I assume kills all things in the tank :Rofl1:I also travel with a little amount of water/mixed pink stuff (we carry a squirt y bottle full because it is a leccy flush straight from the tank)in the loo bowl which should stop any nasty niffs coming from the loo.
    Since showers are at the lowest point there are few and far between that can get traps fitted.
    terry
     
  8. DESCO

    DESCO Read Only Funster

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    I agree with doug used to have this problem a lot at one time, but found putting in plugs cured the problem. It seems OK when on site only a problem when on the move.

    Dave:thumb:
     
    Last edited: Apr 18, 2009
  9. Pat4Neil

    Pat4Neil Read Only Funster

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    Yes we also travel with our shower plugs screwed in. I may also get one of those kitchen plug hole seive/drainer thingy be bob also.

    Regards Pat
     
  10. Johns_Cross_Motorhomes

    Johns_Cross_Motorhomes Trader - Motorhome & Accessory Sales

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    Cheapest and best way is to mix up some washing powder, Bold, Daz etc, and pour it down the shower tray and let it slosh about or sprinkle some in the tray when you have a shower.

    Just do it once a week and it will never smell again.

    Peter
     
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  11. vindiboy

    vindiboy Funster

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    Waste food particles in the waste tank cause smells,and as waste tanks seldom empty completely you will always have a potential for smells and any bleach ,washing powder, or soap products mixed with water and allowed to slosh around in the tank as you drive will help to eliminate the smells, has any one tried a drop of loo blue I wonder.When I park my Hymer after a drive I usually pour a drop of water into each plug hole as driving can cause the tiny ammount of water used as the seal in the plug holes to dissapear ,so remaking the seal again stops any smell coming through.:thumb::thumb:
     
  12. pappajohn

    pappajohn Funster Life Member

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    we had this problem for a long time. it only happens to us when driving with water in the tank.
    i always try to empty the tank when leaving site which seems help but you cant always do it.
    then i had a think........
    you put thetford blue (formaldahyde) in your toilet tank and it breaks down everything so i put a couple of cupfuls in the grey tank.......my thinking is the smell comes from the bactria caused by little bits of waste food and grease that inevitably go down the plughole and fester in the tank.

    1/2 ltr of blue and half a tank of water.....go for a run, leave a couple of days and drain.

    you wont beleive the crap that comes out.

    i'll do this once a year and see what happens over time.

     
  13. pappajohn

    pappajohn Funster Life Member

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    you beat me to it Vindiboy ! see post above.:thumb:
     
  14. gazznsam

    gazznsam Read Only Funster

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    We dont have an american RV, but when i built my motorhome i used anti vac bottle traps under the sinks and shower, i rekon that's whats happening with the OP's stinky shower, as they drive along the water in the trap gets sucked out, leaving the trap drym and the smells free to rise.

    if you can get to the shower trap, and assuming it's a houshould sized one, you could replace it with an anti vac trap, they only cost a few quid more than a standard one at a builders merchants.

    for the smells, i swear by TST granuals, i've given up on using thetford blue in my toilet, always stinky after a few days, a few granuals of TST down the pan, and the bog is smell free for at least a week (havent tested longer as that's the absolutel longest we go between emptying it... is a standard thetford cassette bog)

    every so often i'll dose the grey tank with TST, and it seems to take the smells away as soon as it hits the tank, great stuff,
    starspangledspanner sells it for a good price, and that's where i get mine from now, my parents brought me some back from america years ago, and i really missed it when i used it all up, so glad i found a seller of it, (did find it in a motorhome shop once, for 3 times more than i'd ever pay for it)
     
  15. Johns_Cross_Motorhomes

    Johns_Cross_Motorhomes Trader - Motorhome & Accessory Sales

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    BOLD or DAZ Biological every time, cheap and it works! Cupfull down the sink or shower tray, or wash your knickers in the sink with it! Double bubble!:thumb:

    Peter
     
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  16. Blisters

    Blisters Read Only Funster

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    we had this problem, cured it by leaving the grey tank open after emptying, job done:thumb:
     
  17. peterandbetty

    peterandbetty Read Only Funster

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    We always use a little plastic thing that stops any bits of food going down the sink .But i use Milton in the fresh water tanks and then enpty into the waste tank and let it sit there for a couple of days and we've had no problems. Betty:thumb:
     
  18. Johno

    Johno Read Only Funster

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    I know this probably breaches every health and safety rule and COSHH regulation and is no doubt environmentaly unfriendly, but I have in the past used a solution of caustic soda and driven the vehicle to slosh the solution around a bit, amazing the amount of muck that drained out afterwards. The caustic helps to disolve grease which tends to build up over a period of time and which is not touched by some cleaning agents, but take care when using caustic and rinse off stainless steel surfaces after pouring down the plug and dispose of safely down the drain, and always follow the instructions on the bottle. Works for me.
    John.
     
  19. hilldweller

    hilldweller Funster Life Member

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    From sound and smell I'm sure our Burstner does not have room for a trap.
     
  20. oldun

    oldun Read Only Funster

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    We have a tip-up basin in the toilet room so there is no plug to put in the hole - so that is not a solution for us.

    I have tried the pink toilet top tank fluid and it seemed to work. The trouble is that the smell only appears irregularly and we cannot find out why.

    We are in the process of fitting a waste trap to the toilet room sink.
     
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