I heard of this drain back tap?, what is it called? how would I install it? Where can I buy one? I have asked my plumber, but he has never heard of it. Has anyone see any info on the net ?
"Make sure that the waterlines coming into the barn won't freeze up. Sometimes, all it takes is insulating the above-ground pipe leading to the faucet or tap. If not, you might have to install a hydrant-type system, which send the water back below the frost line when not in use. "
CathyLee