Elsan Blue for chemical commode - cheapest place to buy it?

[Tensmumym]

My mum has recently started to use a chemical commode. She was initially supplied with chemical, Elsan Blue but we now need to buy it. It seems the most common place to get it from is Age UK but they are charging £12 for 4 litres which won't last long. Is there anywhere cheaper to buy it? Thanks.

Have a google of camping/ caravanning suppliers.

We have camping toilets that could use elsan ( good old elsan blue of my childhood holidays - I can smell it now lol) but actually we used a cheaper own brand liquid and I bet you could too for mum - or buy it in larger amounts...

Thanks for reminding me that the camping loos ( we have 2 in the attic- don't ask! ) are something to not get rid of as my parents are now dodderingly old. They could be very useful.

Thanks very much Theas.