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Description
The Whale Non-Return Valve LV1219 is an easy, effective solution to keep your pump lines primed and prevent unwanted backflow. Designed for in-line installation, it works with both manual and electric pumps, helping maintain consistent performance and protecting your system when the pump is off.
Whale Non-Return Valve - LV1219 Item # 887917
Description
Features:
- Simple way to maintain prime in a suction or discharge line
- Stops Backflow when pump is turned off
- Designed to fit in-line
- Suitable for 3/4" OD Input Hose to 3/4" or 1" Discharge Hose
- Suitable for use with manual or electric pumps
Part Numbers for Whale Non-Return Valve - LV1219
Reviews
Questions
Would this work on a sink drain, or shower drain, installed horizontally?
I have read that there needs to be adequate pressure in order for water to flow through non-return valves, generally. This was in the context of bilge pumps which I would expect generate a lot more pressure than a drain where the force is solely gravity. I wouldn't put one on my sink drain and expect it to be as safe as the valve that can be shut off. And the angle of my sink drain is such that if the hose back filled, I'd be in a broach with a lot more things to worry about.
Date published: 2025-01-26