Review on 🐋 High-Performance Whale Inline Valve - Ideal for Suction or Discharge Lines - Enhanced Nitrile Material by Kazuki Vong

I used this to automatically drain my sailboat's bilge pump. The hose installed by the builder is 1 inch in diameter. Newer bilge pumps use 1 1/8" fittings. I have about a foot of 1 1/8" hose that curves up and out of the pump. I installed this valve vertically and it connects perfectly to the 1" hose that goes overboard. In my configuration, there is about a gallon of water in the plumbing. The valve effectively prevents water from flowing back into the bilge.