Bio Tabs (Pods) .... Spain

Thank you for the info. I'll give it a try.

Do you still use 'Pink' in the flush tank? I did read on another site that toilet "Blu" blocks can be used in the flush tank as long as you remove the covering first. I've not tried that idea either.

I can't simply because my flushing water is from the van's water system, not a top tank. I, however, have a hand spray filled with a bit more concentrated "pink" solution as a freshener and have never "upset" the function of the holding tank.  Try it, I can't see any more adverse outcome than the bio product not working as well as it might.

 I can't recall any person who has followed what I do and gone bio, actually changing back to the proprietary chemicals, if so they have not said so.

 

 

A lot of people use Fabric Softener with the Bio Tabs - I haven't done that yet as I am still using pink and unfortunately found a load  of blue in the shed the other day!  So much easier popping a tab in the tank than getting blue fingers! 

As the OP, and just to wrap-up the thread..........

I never did find anything identifiable as 'biological' washing pods in Spain. It seems however that most ARE, unless they state otherwise.

I bought the cheapest standard pods available in Mercadona (we needed them for clothes washing anyway; e 3.60 for 20)  They work at least as well in the toilet as LIDL's!

I also found that DIA's Lavender softener (e 0.77 for 2l) has a pleasant and long-lasting smell in the rinse tank  .....  and also works for the clothes.

(Along the way, I noticed on MumsNet that a lot of people have trouble identifying Non Biological detergents in Spain).

 

Please tell me how many tabs/pouches do you put in the standard Thetford cassette.

Use pouches not the tabs, and we use one at a time, emptying our tank every couple of days or so if on a non-facility site, longer if we're on a site with toilets. Before leaving to head home I use all the hot water in the caravan's tank to fill up the emptied cassette and add 2 pouches to clean it out on en route home.

Enzymes that work best between 30 and 50° C are not inactive outside this range and will still have significant action at 20°. These will disperse the contents of the toilet. There are in addition surfactants in the biotabs, which do have bacteriological properties. Formaaldehyde is probably a better bactericide, but that is not what you need. What you need is a well dispersed effluent that does not smell too bad and can be easily disposed of. I have not used biotabs, but have used a purpose made biological toilet additive. This dispersed the contents well, but was unusable because of the smell. I intend to give biotabs a go when my bargain pack of conventional additive is used up.

New to caravanning and converted to bio-tabs last year. Agree with all other positive comments with no downside - everything just breaks down & is easier to empty.

Anyway, besides being a carcinogen (which is bad enough) who really wants to use formaldehyde to preserve ones' deposits :) :)

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Very interesting....never come across this idea before - but always willing to try new (proven) things when in the 'van...  Thanks to all.