[GuyBFF]

I'm still trying to figure out what everyone is doing to the danner pumps to make them leak. I've got two systems now, both water cooled, both inline, and both installed out of the box. No extra sealing. I even tried pulling on the hoses to "distort" the head like everyone says is the problem, again I've never lost a drop.

Maybe they send the good ones to Canada? I still wouldn't buy anything else.

I bought them from a friend who's sold many, and again, he's never heard of this. There sold to fish and hydroponics guys who might not be as critical, but if there was a problem you think he'd know.