I am very pleased with Muck Munchers; it has saved me from having a twice yearly pump out. At first I was hesitant in purchasing it after reading the advert in a National newspaper thinking it would be another money wasting gimmick, but I’m glad I did. I have gone a year without the system backing up because it needed emptying. Also no smells in the back garden. Well done Muck Munchers – would certainly recommend this product.