In most laser devices (especially CO2 laser cutters/engravers and some cosmetic/medical lasers), water acts as the coolant for the laser tube or radiation source.

Changing it once a month is a common recommendation, particularly for simple open cooling systems (like a bucket with pump or basic chiller). Here's why regular changes are essential: Prevent bacteria, algae, and microorganism growth
Warm, dark water creates perfect conditions for bacteria and algae "bloom" (green slime). Within a month, it can cause contamination, bad smells, and slime that clogs hoses, pumps, and tube channels. Avoid blockages and reduced water flow
Contaminants slow circulation. Poor flow leads to tube overheating, drastically shortening its life (from years to weeks), lowering beam power, and causing unstable operation. Prevent scale and deposits
Even distilled water accumulates impurities over time (from air, dust, or dissolved particles). These build up on tube walls, reducing heat transfer. Maintain cooling efficiency
Clean water removes heat better. Dirty water causes overheating, power loss, and risk of damaging expensive parts (a laser tube can cost thousands!).How often to change?

• Simple open systems: Every month (or sooner if water looks cloudy).
• Closed chillers (e.g., CW-3000/5200): Usually every 3-6 months, but monthly in dusty environments or heavy use.
  Always use distilled or deionized water to minimize deposits!

Skipping changes can lead to poor cut quality, full tube failure, and costly repairs. It's simple maintenance that greatly extends your machine's life! Check your model's manual for exact guidelines.Manufacturer of diode stacks 808nm. Supplier of laser hair removal machines and spare parts!
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