Former judge and current Republican Rep. Louie Gohmert of Texas has some advice for federal judges ruling on same sex-marriage cases: get some “basic plumbing lessons.”

Gohmert was discussing recent rulings legalizing same-sex marriage when he summed up the decisions of judges as saying, “‘Basically, we haven’t seen any biological evidence to support marriage being between a man and a woman.'”

To that legal explanation, Gohmert said those judges “need some basic plumbing lessons.”

The comment came during a monthly conversations with conservatives event hosted by the Heritage Foundation.