Black waste disposal

[vectian]

Recently I saw a notice in a Council run public toilet at an out of the way tourist attraction addressed to motorhomers and campervaners not to empty toilet cassettes into the toilets as the chemicals in it will kill the bacteria in the bio digester the toilets are connected to as they are not connected to the mains sewerage system.
If like me and you use cheap bio laundry liquid in the cassette as discussed in umpteen posts in the past would the contents of the cassette be safe to empty into bio digester sewage systems.

 

[DavidG58]

although the contents will do no harm as such to the system, they are not designed to receive large concentrated volumes

if your cassette is full that is the equivalent of lots of toilet uses with little water to dilute, even a few flushes would not dilute to normal levels

But by far your biggest issue would be how it would look if you did use it, regardless of what contents you have

 

[vectian]

But by far your biggest issue would be how it would look if you did use it, regardless of what contents you have

I wasn't thinking of using this one or any other one with such notices but I do know of quite a few places with bio digester systems that don't have these notices and don't want to destroy their system if I do need to empty there

 

[rb62]

How 'Bio' is Bio ?
picked these up the other day,then read the back ,so in this case probably not!

 

[vwalan]

having worked for south west water on sewage ,all i can say is best dont do it .
i have at one time had to keep emptying a campsites privatre sewage system and putting back in good sewage as folk kept tipping cassette toilets into the toilets rather than the chemical toilet tank system.
the chemical toilet waste requires different treatment .
it killed the working sewage plant time after time .
emptying and washing the sewage plant out then refilling with good working sewage did in the end work .
cost the campsite thousands to correct it though.
best dont risk spoiling the system.
in truth it doesnt take many to spoil it or all.
my advice is dont use anything other than water in your toilet , do number 2,s but only water to swill the bowl. that was talking with the scientists . they reckoned even the so called green fluid wasnt any good .
lots of septics get spoilt round here by automatic washing machines and dish washer going into them . lots houses in the country arent on mains sewage .