BitsPower Tiny Tank SC6 200 Pump PWM transparent – compact pump-reservoir combo for water cooling

The BitsPower Tiny Tank SC6 200 Pump PWM transparent is a compact pump-reservoir combo engineered for custom PC liquid cooling loops where space is limited. This integrated unit combines a PWM-controlled pump and a small reservoir in a single transparent housing that allows visual monitoring of coolant level and flow. The 200-series form factor makes it suitable for small form factor (SFF) builds and compact cases while providing the essential functions to circulate coolant reliably in closed-loop or custom loops.

Advantages

The integrated design reduces tubing and mounting complexity by combining pump and reservoir in one module, saving space in constrained builds. PWM control enables dynamic pump speed adjustments to balance cooling performance and acoustic output according to system load. The transparent body provides clear visibility of coolant level and flow, simplifying filling and leak checks. The compact footprint and lightweight construction facilitate installation in small chassis and unconventional orientations.

Suitable for

• Small form factor (SFF) and mini-ITX gaming or workstation builds
• Compact custom water cooling loops inside limited-space cases
• Systems that require PWM pump speed control for quieter operation
• Projects where visual coolant monitoring is needed during setup and maintenance

Key specifications

• Integrated pump and reservoir in a single compact housing
• PWM-controlled pump for variable speed management via motherboard or controller
• Transparent reservoir body for coolant visibility
• 200-series compact form factor for space-constrained installations
• Connectors compatible with standard water cooling tubing and fittings

How to use

Mount the unit in a secure location inside the chassis where tubing can reach the radiator, CPU/GPU block, and return lines without excessive bends. Connect inlet and outlet ports with appropriate fittings and tubing, ensuring tight and leak-free connections. Attach the PWM power connector to a motherboard header or compatible controller to allow automatic speed adjustment. Fill the reservoir with appropriate coolant following the coolant manufacturer's instructions, then perform a leak test and initial bleed cycle before powering the full system. Monitor coolant level and refill as needed through the transparent reservoir.

Recommendations

For reliable operation, use coolant formulated for PC liquid cooling and avoid plain water; follow standard loop priming and leak-test procedures. Ensure the PWM cable is connected to a controllable header so pump speed profiles can be configured for temperature-dependent control and noise optimization.