Sanking
Check Valve
by Sanking — see more →$65Out of stock · backorder
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SKU 108307N
Ships Australia-wideOut of stock
Dry goods ship Australia-wide with fast dispatch from Eastwood — or collect in store with the rest of your order.
SKU 108307N
SKU 108307N
Available to backorder
Out of stock in-store — order now and we'll bring it in for you, ready to ship (or collect) when it arrives. Paid securely at checkout; we'll email you with timing once it's on order.
Added as a backorder
- Ships Australia-wide — fast dispatch from Eastwood
- Or collect in store with the rest of your order
- Genuine stock — marine specialists since 2012
Overview
Water siphoning backwards through a pump or plumbing line when equipment shuts off is a common cause of overflows, air locks and messy leaks in a reef system. A check valve solves this by allowing water to flow in one direction only, stopping unwanted backflow the moment a pump stops.
It's a simple, largely maintenance-free part that quietly protects your plumbing from a genuinely common failure mode.
Key features
- One-way valve preventing backflow when a connected pump switches off
- Corrosion-resistant construction suited to long-term saltwater use
- Straightforward inline installation into existing PVC plumbing
Who it's for
Anyone plumbing a return line, top-off system, dosing line, or any setup where backflow after a pump stops could cause an overflow or air lock.
Setup & tips
- Install with the flow direction arrow correctly oriented - a reversed check valve will block flow entirely
- Position it where it's accessible for inspection, since debris can occasionally prevent a valve from sealing fully
- Test the system with the pump both on and off after installation to confirm the valve is working as intended
- Check periodically for any buildup that could affect the seal, particularly in lines carrying fine detritus
