Blocked or underperforming jets are one of the most common complaints we hear — and in most cases it's a simple fix you can do yourself. This guide covers cleaning individual jets, dealing with scale build-up, and when the problem points to something deeper.
If all jets have reduced flow simultaneously, the issue is almost certainly the filter or pump — not the jets themselves. Clean your filter first.
Most hot tub jets have a removable face that twists out for cleaning. The process varies by manufacturer but is generally:
Do all jets at once while the tub is drained for your quarterly clean — it's much easier than reaching into a full tub.
Calcium deposits inside the pipework itself require a chemical treatment. Add a descaler or pipe flush product to the water and run the jets for 30–60 minutes before your next drain. This dissolves internal scale and flushes it away with the water.
If your area has particularly hard water, consider using a pre-fill water softener filter on your hosepipe when refilling.
If the jet face spins but there's no water coming through, the nozzle insert may have come loose inside the body. Remove the face and check the internal nozzle is seated correctly. If it's cracked or missing, the insert can usually be replaced without replacing the whole jet body.
Call us if: one or more jets won't come out despite gentle pressure, the jet body itself is cracked or leaking, or you have multiple jets on the same pump losing pressure. This can indicate a pump impeller issue or a partially closed valve. Book a service visit.