BlackRidge Air Hose Inline Water Trap is an inexpensive air compressor accessory and something you really should consider if you intend to do some serious spray painting, this small filter stops water from entering your spray gun and ruining the paint finish on important jobs.
Available from:
SuperCheap Auto
? https://www.supercheapauto.com.au/p/blackridge-air-inline-water-trap/340079.html