Just a few words on slurry pits.
There are three basic types, silos (those big round green things) open tanks/pits which are holes in the ground usually concrete lined and the third is covered sheds where there are tanks underneath concrete sl@ts upon which the animals move around. Dairy herds will have cubicles for the cows with a slatted passage alongside or down the centre while beef are often left to lie on the sl@ts.
Getting a body into into a silo or open tank is easy enough, tip it in with a loader, if the loader can reach. But it will be pretty obvious and easily found unless you weight it down. Sl@ts usually have a removable section for access, but if you tip it here it will be the first thing found when folk go looking for a body.
Two further problems with the slurry pit idea, the first is that they provide a highly anaerobic environment, there is no oxygen and for things to rot that's what you need. Slurry pits are more likely to pickle and preserve a body.
Secondly, by mid to late March it is highly likely that Gaine would have emptied the slurry pits, it's best to get it spread on the grass as early as possible so it has time to be incorporated into the soil before grazing.
So no, the slurry pit might seem obvious but it wouldn't be the first choice of anyone who knows about farming, which might suggest that if it was disposed of in this way then the killer is not a fellow farmer.
Is S L A T a naughty word now? The site won't let me post it!