Novice gardener here.
My keen gardening neighbour kindly installed my water butt for me.
I understood that once the WB was filled any overflow would go back down the drain pipe, but instead the WB is full, and all the overflow is just coming out onto the ground. Neighbour says this is OK. Surely this isn't how they are meant to work? We are having a lot of rain and I am worried about overflow of water so close to my house.
Any idea how I can remedy this?