Flush tank additives

EalingBob
EalingBob Forum Participant Posts: 32

I recently started using biological liquitabs to add to our waste tank. I found that they worked well with little difference between them and the expensive stuff you can buy in caravan dealers.

I was wondering has anyone any experience with additives to the flush tank?  I would have thought that any suitable wetting agent would do?  Has anyone tried washing up liquid...or am I being naïve?  I tried car screen wash and that seems to work very well but it's not cheap and a lot more expensive than washing up liquid!

Any advice?

Many thanks,

Bob D.

 

 

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Comments

  • Bakers2
    Bakers2 Forum Participant Posts: 8,192 ✭✭✭
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    edited February 2017 #2

    We too much prefer the bio tabs for the black waste tank smile.  Our flush comes direct from our water tank so we add nothing.  On the old lost thread I recall fabric softner, such as comfort lenor being suggested and used for the flush tank.

  • Pippah45
    Pippah45 Forum Participant Posts: 2,452
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    edited February 2017 #3

    I just bought a bargain pack of Formil Bio Tabs in Lidl - and as Bakers2 has said many use fabric softener - I am using up pink stuff in stock at present but I will try fabric softener.  I have also thought of putting zoflora or something in a spray bottle (that would be handy while stopping off on a journey too.  

    Some people have worried about the seals - but logic tells me that a washing machine has seals so they should be ok! 

    I think you will find more on Caravan and Motorhome Chat somewhere. 

  • Metheven
    Metheven Club Member Posts: 3,987 ✭✭✭
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    edited February 2017 #5

     I use Aldi/Lidl fabric conditioner in the flush tank, it leaves a better smell than plain water.

  • exmcr16
    exmcr16 Forum Participant Posts: 1
    edited February 2017 #6

    I'm reading this and assuming that we are talking about the waste tank being the toilet cassette tank. We met a fellow motor-homer in France who was in a hired van that came issued with washing machine capsules to be used in the toilet cassette. We tried it, but are using up our "Blue Diamond" stuff. It has a more potent pong.

  • ABM
    ABM Forum Participant Posts: 14,578
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    edited September 2019 #7

    As  far  as  I  am  concerned  the  WASTE  TANK  is  the

    removable  part  of  the  toilet  and  is  that  part  which 

    we  take  to  the  "Emptying  Point"  to  empty  &  flush  out.

    It  is  this  part  that  you  add  your  Blue  Or  Green  Fluids

    or  in  the  case  of  some  of  us,  place  the  gel  filled

    BIO  PODS.  { Dometic  have  started  selling  gel  filled

    pods  but  I  have  never  used  or  studied  their  contents

    but  I  suspect  they  are  similar to  the  fluids,  just  more 

    convenient  and  at  Dometic  Prices  !!}

     

    The  Flush  tank  is,  if  fitted,  filled  thro  it's  own  filling

    point,  where  water  &  any  deodorising / sterilising

    agent  can  be  added.

    Many  of  those  who.  like  me,  have  no  separate  Flush 

    Tank,  draw  the  flushing  water  direct  from  the  one 

    main  water  tank.  and  carry  a  separate  Spray  Bottle

    containing  diluted  "Pink"  fluid,  or  general  household

    cleaner  like  Zoflora  or  similar  --  which  ever  aroma

    you  prefer  !!  I  suppose  it  could  be  the  weak 

    Comfort,  Lenor    or  similar  solution. 

     

    Brian

  • EalingBob
    EalingBob Forum Participant Posts: 32
    edited February 2017 #8

     Many thanks everybody. 

    I think I'll give conditioner a go and after that washing up liquid. I suspect that any liquid additive that is a wetting agent is a bit better than neat water alone.

     

  • Bakers2
    Bakers2 Forum Participant Posts: 8,192 ✭✭✭
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    edited February 2017 #9

    Glad to be of assistance, once you've tried it do tell us what you think of it. It's good to have feedback. 

  • Pippah45
    Pippah45 Forum Participant Posts: 2,452
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    edited February 2017 #10

    Hmm I would be doubtful about using washing up liquid in the tank - you might create a lot of bubbles!  Would you put that in you cystern at home?  But then I guess you wouldn't put fabric softener in it either! 

    It seems that modern MHs have the flush tank connected to their onboard tanks so they can't add anything to the flush - but I prefer something a little fragrant! 

  • ABM
    ABM Forum Participant Posts: 14,578
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    edited September 2019 #11

    As I said Pippah, I've  got a Spray Bottle and use the pink stuff diluted 'til I run out then you'll find me in the supermarket sniffing around the cleaning/disinfecting bottles embarassed !!

  • Lynton
    Lynton Forum Participant Posts: 50
    edited February 2017 #12

    Going use Bio Tabs on next outing got Bold 18 for 2:99 Home Bargains, bargain indeed we shall see how they work. Most likely still use the pink for the flush tank though.    

  • Merve
    Merve Forum Participant Posts: 2,333
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    edited February 2017 #13

    I use Aldi bio pods in the waste tank which I find far more efficient to blue and fabric conditioner by Aldi in the flush tank. . It's highly scented and keeps things smelling sweet. I also like the idea of zoflora in a spray around the bowl - that also works. Don't use detergent, you'll have suds! - especially if you have a 'cling on' and you are doing the 'waste tank shake' LOL! You shouldn't have with bio pods- they break things down pretty well!!

  • Merve
    Merve Forum Participant Posts: 2,333
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    edited February 2017 #14

    Hope these are biological gel filled pods Lynton? Can we all call them pods and not tabs as the latter tends to suggest Tablets which is not what you need!!

  • Lynton
    Lynton Forum Participant Posts: 50
    edited February 2017 #15

    Sorry Merve Freudian slip yes bio pods still bargain pods laughing

  • harrib0
    harrib0 Forum Participant Posts: 70
    First Comment
    edited February 2017 #16

    Daft question I'm sure, but this thread seems to be a good place to ask.

    But will following any of the above advice of using products other than "normal" toilet fluids etc invalidate any form of warrenty (if there is any?) on a 2017 caravan with a "Thetford C260 toilet with electric flush and 18 litre wheeled waste tank" What ever that might be?

    Never had this problem with a trailer tent but a caravan is a whole new ball game.

    May want to stand well clear of the "unsure guy" peering down the waste pipe of a C260 at the empty point!

     

  • ABM
    ABM Forum Participant Posts: 14,578
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    edited February 2017 #17

    Harribo,

    If  you  are  concerned  w r t  Warranty  at  Service  time,  just

    make  sure  the  toilet  is  thoroughly  flushed  clear  &  rinsed.

    I  am  110%  sure  nobody  at  the  Service  Dept  is  going  to

    do  chemical  analysis  there  innocentwink   !!

  • bandgirl
    bandgirl Forum Participant Posts: 440
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    edited February 2017 #18

    I used to put the pink stuff in the flush tank and always got lots of black bits at the start of every trip.  This could probably have been avoided if I'd bothered to drain the tank and flush it with clean water at the end of each holiday/trip but, alas, I never did. Once the last bottle of pink stuff ran out I didn't buy any more.  Having used water only to flush for the last 18 months, there's been no black bits and no smell (that the additive was supposed to deal with).

  • Qashqai66
    Qashqai66 Forum Participant Posts: 551
    edited February 2017 #19

    I think I might try Ecover laundry wash. Zero unpleasant smell and it creates very little in the way of bubbles in the washing machine.

  • Pippah45
    Pippah45 Forum Participant Posts: 2,452
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    edited February 2017 #20

    I think the point of the tabs - for me at least is the pleasant smell.  Plus  I rather think Ecover is non biological so it wouldn't work.  (I use ecover at home for my laundry although am almost converted to tabs for that too).  I definitely wouldn't use soap in the flush tank either.  

    I am not sure how likely warranty work is on the cassette - the seals are inexpensive really and the only problem I have had is one leaking because the two halves of the cassette - came apart - at the seam.  Hideously messy that was and the dealer kept saying I must have traveled with the blade open.  I suspect it could have been frost damage or a faulty cassette in the first place.  As a matter of fact - I might not have discovered that if I had been using Tabs at the time - I just spotted the blue coming out of the seam when emptying it.  But that wouldn't send me back to blue nowadays! 

  • DSB
    DSB Club Member Posts: 5,666 ✭✭✭
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    edited February 2017 #21

    We tend to use pink stuff, but I get the cheaper stuff that is branded by one of our more local caravan/ camping stores - Jacksons of Arley.  We've had no black bits using this. See HERE

    David

  • rayjsj
    rayjsj Forum Participant Posts: 930
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    edited February 2017 #22

    Not all pink additive allows bacteria/black bits to form, Thetford does, but Elsan pink/red  certainly does not, i use it all the time now.

    What do you want  ? To encourage bacterial action or to stop it.

    For me i use fluids that stop it, and kills as many germs as possible.

    For that, the cost of traditional fluids, i always use Elsan Blue, is worth it.

     

  • Ardsboy11
    Ardsboy11 Forum Participant Posts: 23
    edited May 2017 #23

    The black bits do indeed grow in the "pink flush fluid", I experimented by draining it off into a cleaned mineral water bottle at the end of the 2016 season. checked it in April 2017 and it was full of black bits and streamers that looked like floating cobwebs.

     

  • richardandros
    richardandros Club Member Posts: 2,681 ✭✭✭
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    edited May 2017 #24

    I'm not sure what to do for best when it comes to flush tank additives.  I posted on another thread that I had recently noticed a lot of gunge developing at the top of the flush tank after using various makes of pink additive for the last two years.  Sure enough, when I cleaned the tank out using a bio pod, there were bits of black developing - which have now been cleaned out.  The idea of using a fabric softener has its appeal - especially as  my wife complains that using just water tends to result in a smelly toilet.  However, when our last washing machine was being repaired, the engineer said that he never uses fabric softeners in his washing machine because they contain fats and this is what causes the black gunge to develop in the dispenser tray (and the rest of the machine) particularly if it is used regularly on a low temperature wash.  So - it would appear that whatever you use, is going to cause problems.  The spray bottle seems to be the best solution! 

  • wye
    wye Forum Participant Posts: 241
    edited May 2017 #25

    When I fill the flush tank I add a cap of zoflora , its a quid a bottle .

    It does the trick .

  • Navigateur
    Navigateur Forum Participant Posts: 3,880
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    edited May 2017 #26

    I do find it strange that caravanners have been talked into buying additives for the flush tank where the contents are going straight to waste but very few indeed add anything to the Aquaroll, much of which is going to be swallowed by the caravanners.

  • Merve
    Merve Forum Participant Posts: 2,333
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    edited May 2017 #27

    The only reason I started to use bio pods was because a member posted that they could be used. I thought I would try it and I found that the 'break down' of the solids was much more efficient particularly if the tank is swirled (do this with care and make sure your seals are in good condition!!!) before the emptying process. I found that I wasn't fighting a 'cling on' and cursing under my breath ' come out you bugger!'while filling it with fresh water another 2 or 3 times to achieve a cleared tank!  Everything was liquified and emptied really well. It doesn't happen every time but it is generally much better than blue and I don't have to worry about an accidental spill which would be a disaster! That alone was worth the experiment. I use a highly scented fabric conditioner in the flush tank and have a small spray bottle of zoflora around the bowl if needed. Can't see me going back to blue and pink ......or EHU for that matter

  • Merve
    Merve Forum Participant Posts: 2,333
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    edited May 2017 #28

    I like that idea ,Wye. Zoflora is a powerful disinfectant 

  • Nuggy
    Nuggy Forum Participant Posts: 512
    edited May 2017 #29

    Previously I used the pink additive made by Blue Diamond and had a problem with black bits, to such an extent that the bits blocked the pump and stopped it working, so no more pink additive.

    I would be happy to use Lidl bio pods in the waste tank, but not in my flushing header tank, because the bio liquid is contained in the clear gel like sachet. Even though it is 'meant' to dissolve it could still block the pump if it doesn't dissolve fully.

  • young thomas
    young thomas Forum Participant Posts: 11,356
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    edited May 2017 #30

    im glad we dont have a flush header tank.....soooo many different options....

    the black waste tank os currently on Aldi Almat bio gel pods (lavender, we like to try different ones.....undecided) but i dont think they are as good as the Lidl bio gel pods.

    i only tried Aldi as we have a new store nearby, back to Lidl when these run out.

    incidently, for those who travel abroad, i could find any (marked) bio pods in Lidl in Spain, so will take a supply with me next time.

  • Merve
    Merve Forum Participant Posts: 2,333
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    edited May 2017 #31

    No Nuggy my old mate, bio pods ONLY IN THE WASTE TANK. Fabric Conditioner in the flush tank.