Prior to getting our garden landscaped and built for me as a disabled gardener , we tried three things to get rid of dog muck from one dog pooping for the UK ( winner since 1999 )
First when I was able , I would dig a hole three foot by three foot by four foot deep using a long handled spade and a vacuum cleaner , each day the hole was " fed ". After seven months or so the hole was within 500 mm of the top and was filled in .. ( it's no fun forgetting where a filled hole is and walking on it when its been raining for a few weeks ) .
As the available area for these holes was filled up I decided on a worm base digester .... got a big swing top kitchen bin cut the botton out with an angle grinder and set it in a get big hole that had 1.2 tonnes of 15 mm clean stone in it .
Result ground water from up the hill runs down and fills the hole as well as drowns all the worms . extra result .. we stopped using it , it turned green and grew a 15 mm thick crop of maggots ..
Third method was to use a big local authority supplied Dalek composter bin above ground on a 150 mm bed of sharp sand ,
It has taken Merle our gangly yoof sheepdog / golden retriever cross 10 months to fill it to a depth of 250 mm ..that a heap of stuff I can tell you.
When the contractors arrived to start the landscaping I got them to roll the Dalek off the mound of supposedly composting poop , shoved the long handled spade in it and couldn't find a worm in sight ..... realised dog worming tablets don't just kill tape and thread worms .
The labourer of the contractor was tasked with removing the sunken swing bin .. On opening it and finding the green slime full of maggots he vomited his toe nails up , then in a daze went and sat down wind to get a second helping and carried on hooping up.
So now instead of any sort of composting bin I have a dog loo which gets washed through every sunday and recharged with 50 ml of activtor ( caravan blue loo turd digester liquid .
Here are a few pictures for any one interested in solving their dog muck prob ..it drains away into a 100 mm preforated land drain so there are no smells and no probs with surface water anymore .
The loo is enclosed in the small engineering brick tower where the green lid is and is well above ground ..it is also very easy for me to access it & clean up the dog muck as there is no bending for me .
In front of the tower is a 1.5 x 2.5 b mtr pit filled with 300 mm of 10 mm clean crushed pink granite chips . ( all the brick work is set on a 300 mm concrete foundation )
Merle has been trained by us to go to his loo for a peep or a poo . If it gets dry and smells of urine we simply hose the chippings down for a minute using a sprayer head on the hose pipe and put half a watering can of two caps of the blue loo digester concentrate and 5 litres of water over it after the hose down ( it smells of cherry wood sawdust )
For the nosey ones ...that raised bed to the right is for our asparagus bed , it should run for over 20 years and will hold over 30 crowns if we are lucky ( 14 seeds sown 12 germinated . They are now 7 inches tall and all are desparate for the land scapers to fill the bed with alternative layers of well rotted horse muck , sharp sand and soil , five full layer sets in total .