The Yong Heng "Simple" version least expensive does not have a water separator you need one.
If this is what you bought you can add the separator block and plumbing parts, buy a water separator that costs half of what you paid for the compressor or buy a new compressor. If you got any of the other three compressors available then;
Purge the system of moisture, using the screw valves on both sides of the compressor, for a couple of seconds every five minutes while in use.
Change out your small YH filter every twenty minutes and set the old one out to dry and use later.
Add a better filter if needed to be sure more moisture and any oil smell is removed from the system. Many of us use this Tuxing three media filter although, if you feel the need, you can change media types at any time.
https://www.aliexpress.com/item/32891898253.html A smaller one will probly do for many.
https://www.aliexpress.com/item/4000960926898.html?spm=a2g0s.9042311.0.0.2a034c4dL0nrJU. Bleed the pressure before you turn the unit off and let it run a few seconds to get the better part of the moisture out of the system. I have found that I blow less burst discs if I bleed before shutting down so I do this religiously.
I recently started using this Red Line water treatment after I noticed algae growth in my 2.5 gallon water bucket every few months. It seems to have stopped the algae growth problem.
https://www.autozone.com/antifreeze-radiator-additives-and-windshield-wash-fluid/coolant-water-wetter-additive/red-line-water-wetter-super-coolant-12oz/486218_0_0 Keep your water supply level with the compressor to
be kind to the pump and assure a good supply of coolant goes through the compressor.
Keep your moisture filters, guns and tanks being filled above the compressor to
help keep the moisture out.
Bleed the pressure before you turn the unit off and let it run a few seconds to get the better part of the moisture out of the system. I have found that I blow less burst discs if I bleed before shutting down so I do this religiously.
