Onga Weir Flap
A broken weir flap shouldn't sideline otherwise good Onga equipment, and with a decent sample to work from it usually doesn't have to. Variants differ between years and models, so we'll need your part (broken is fine) to match the exact one.
A broken weir flap shouldn't sideline otherwise good Onga equipment, and with a decent sample to work from it usually doesn't have to. Variants differ between years and models, so we'll need your part (broken is fine) to match the exact one.
Why these break
Weir doors warp and jam the skimmer throat. UV exposure breaks down the polymer chains in the original material. By the time the surface looks chalky or faded, the strength underneath is already gone.
How we reproduce them
Bring in the broken part and we'll reverse engineer it — usually with a design tweak that addresses why it failed in the first place, not just a copy of the weak original.
We print these in ASA. ASA is the UV-stable cousin of ABS — it holds its colour and strength through years of Australian sun where the original plastic went chalky and brittle.
As with everything in our library: whether a part can be reproduced depends on size, load, heat, material, and having a decent sample to work from. Send photos first — the assessment costs you nothing, and we'll tell you honestly if a genuine spare is the better option.
Part details
| Manufacturer | Onga |
|---|---|
| Vehicle / equipment type | Pool equipment |
| Common failure mode | Weir doors warp and jam the skimmer throat |
| Typical use case | Direct replacement for the original weir flap on the Onga. |
Printing & reverse engineering
| Can print directly | No |
|---|---|
| Can scan from broken sample | Yes |
| Can redesign / improve | Yes |
| Recommended material | ASA |
| Alternative materials | PETG |
| Print technology | FDM |
| Difficulty | Medium |
| Estimated print time | 1–2 hours |
| Estimated cost range | $14 – $30 |
| Expected lifespan | 4–6 years outdoors |
| Outdoor suitable | Yes |
| Heat resistant | No |
| Load bearing | Depends |
| Requires post-processing | No |
Ask us about this part
Many plastic parts can be recreated, repaired, redesigned, or printed, depending on size, load, heat, material, and available samples.
