New low cost biogas digest#er

We have shown that anyone can make a simple low cost digester using layflat cylindrical plastic.
Details available from Graham at biodesigndiy@gmail.com

Could you send me more information on the digester you mention please? byrdv2@gmail.com

Hi,
I was going to attach a pdf but I cannot see how?

It uses basically just layflat plastic which is found in many SSA countries.
How about emailing Graham at biodesigndiy@gmail.com