This Hydrocell check valve replacement is a simple spare part that helps keep water moving the right way in your Hydrocell setup. It’s made for Aussie HVAC techs and maintenance crews who want steady flow and less mucking around on site.
If your unit is losing prime, pulsing, or dripping around the tank join, the check valve is one of the first parts worth checking. Swapping a worn valve early can save time during split system wash-downs and routine maintenance runs.
Compatible with: Hydrocell 17L Tradie (GFS-CT1) and HydroLith 17L (GFS-CL1) models with a twist-off water tank. It sits at the bottom of the tank where the base and tank meet.
Best for: HVAC techs, installers, maintenance teams, and capable DIY-cleaning customers who want reliable water flow and simple maintenance.
Compatibility check: Suits Hydrocell 17L Tradie and HydroLith twist-off tank models. If you’re running a different unit, check fittings/specs before ordering.
Features
- Helps stop backflow, so the tank is more likely to stay primed.
- Supports steadier water delivery for more consistent rinsing.
- Quick, practical fix for common “won’t prime” or “weak flow” issues.
- Easy to locate at the tank base during routine checks.
- A handy spare to keep in the van for maintenance-heavy weeks.
Technical Specifications
- Part type: One-way check valve (water flow control)
- Fitment: Hydrocell 17L Tradie (GFS-CT1) + HydroLith 17L (GFS-CL1) twist-off tanks
- Location: Bottom of tank, at the base-to-tank join
- Purpose: Helps maintain prime and steady water delivery
- Note: No pressure/flow rating listed (use for intended Hydrocell setup only)
What’s in the Box
- 1 x Hydrocell check valve replacement part
Why “Stays Primed”?
- Less time spent re-priming between rinse passes.
- Helps keep flow feeling consistent instead of on-and-off.
- Helps reduce drip issues caused by poor sealing at the tank join.
- Simple planned maintenance swap to avoid downtime later.
Using Your Replacement Part: Step-by-Step
- Switch the unit off and make sure pressure is released before you start.
- Remove the twist-off water tank.
- Find the check valve at the bottom of the tank where the base and tank meet.
- Remove the old valve gently (do not force it).
- Wipe the seating area clean so the new valve can seal properly.
- Fit the new valve in the same position and direction as the original.
- Refit the tank, then test for steady flow and check for leaks.
Limitations & Safety Notes
- Do not use on live electrical components. Isolate power before servicing any equipment.
- Only use this part on compatible Hydrocell models (17L Tradie / HydroLith twist-off tanks).
- If you use coil cleaners, wear PPE and handle chemicals safely (gloves and eye protection are a good start).
- If leaks continue after replacement, inspect the tank seal/O-ring and the tank for damage.
- If you’re unsure about fitment, stop and confirm the model before ordering.
Shipping & Returns
We ship Australia-wide. For dispatch timeframes, delivery info, and return steps, please see our Shipping & Returns page.
Hydrocell Check Valve FAQs
What are the common signs the Hydrocell check valve needs replacing?
Look for weak flow, losing prime, pulsing water delivery, or drips around the tank base. If cleaning and reseating doesn’t help, a replacement valve is often the next step.
Does this fit both the 17L Tradie and HydroLith?
Yes—this is intended for the Hydrocell 17L Tradie (GFS-CT1) and HydroLith 17L (GFS-CL1) models that use a twist-off tank. If your tank style is different, check fittings before you buy.
Do I need special tools to replace it?
Usually no. A careful hand is the main thing. A small pick can help if the old valve is stuck, but don’t damage the seating surface.
Will this stop a leak at the tank join?
It can, if the leak is coming from the valve not sealing. If the leak is from a worn O-ring or a cracked tank, you’ll need to fix or replace that part instead.
How often should I replace the check valve?
There’s no set schedule. It depends on use, water quality, and how often the unit is transported. A quick check during regular maintenance is a smart habit.
What should I check if I’m not 100% on fitment?
Confirm the unit model and that your tank is the twist-off type. If it doesn’t match, don’t guess—check specs first to avoid delays.
Why Buy From HVAC Trade Supply
- Aussie-based support that understands real job sites.
- Fast shipping Australia-wide.
- Trade-trusted HVAC tools, parts, and spares.
- Secure checkout.
- Help with compatibility before you buy.
Want the complete setup? Shop our Hydrocell range for compatible tools, accessories and cleaning gear.