Expanding ice can plug and crack pipes if wet air is directed outdoors in freezing conditions. Water, which is present in the lubricant, can damage the inside of lubricated screw air compressors if the compressors are not allowed to come up to operating temperature—this can happen in the case of oversized compressors.Click to see full answer. Furthermore, are air compressors waterproof?Designed specifically for the off road enthusiast, this heavy duty air compressor is capable of running fully submerged under water. The Kleinn engineering team developed the new 6450RC air compressor with modified seals & gaskets to make it completely waterproof. do I need to drain my air compressor? Yes, definitely drain it after each use. Need to avoid letting water pool in the tank, possibly corroding and weakening it. Release the air and open the drain valve for a while to let out any condensation. I always drain my compressor when finished, mainly to blow out any moisture that could have built up inside. In this manner, why do air compressors get water in them? Eric, anytime when you compress air, the pressure increases. If the dew point of the incoming air is high enough, this will cause the water vapor to condense upon compression. This is what is causing water to form as droplets. Compressors have a water drain to get rid of the water, drain it daily or after use.Why do I have so much water in my air tanks?Air includes water, so moisture is always present in your compressed air to varying degrees depending on humidity and temperature. An accumulation of water can cause moisture to get pulled back into the compressed air stream.