Trev I have thought about the fish idea, about 45 years ago at my parents place we put some goldfish in their pool and boy did they grow big in 12 months or so. The hard part was catching them when they wanted to clean the pool, didn't have the heart to just chuck some chlorine in it.
BB it is not about the money, I don't want 10 meters of dirt dumped in the driveway and have to barrow it up a ramp on the stairs.I can't recall ever seeing a silage heap on a farm self combust, I know they generate a lot of heat but they are very moist. Maybe I will just leave the water in it, all seems too hard.
