This check valve weight is the small replacement part that keeps the check valve in hand-pump and cistern pump systems seated properly. Water pumps rely on a check valve to prevent water from running back down the drop pipe between pump strokes — without a working check valve, the user has to re-prime the pump every time, which is impractical for daily use.
Over time, check valve weights wear down, fall into the well, or break — at which point the pump stops working and needs the right replacement part. Buying the correct OEM-standard weight rather than improvising with random hardware makes the difference between a working pump and one that mysteriously stops holding water.
For households running hand-pump or cistern pump systems for off-grid water supply, emergency well water access, or rural-property well operations, this kind of small replacement part is the maintenance purchase that keeps the system in service. Pair with the matching pump leathers and check valve assemblies from the Lehman’s catalog for a complete pump-rebuild kit. Lehman’s catalog selection.
