Aqua-Computer Dr. Drop pressure tester with air pump 34087 — computer cooling system accessory, black

The Aqua-Computer Dr. Drop pressure tester with integrated air pump (model 34087) is a compact tool for controlled pressure testing of custom water-cooling loops and individual components. It provides a simple means to pressurize a loop, verify fittings, tubing and radiators, and safely hold test pressure while you inspect connections. The unit is finished in black and features a large 63 mm manometer for clear and precise pressure readings, a discharge valve to release pressure after testing, and a G1/4 inner thread that accepts a hose fitting matched to your preferred tube diameter. The included air pump also supports common bicycle and car tyre valves, and a pump holder with a bottle-cage mounting pattern is supplied.

Advantages

The Dr. Drop combines a built-in hand pump and a large, easy-to-read manometer in a single compact unit to simplify leak testing and verification during assembly or maintenance of water-cooling systems. Its G1/4 inner thread provides compatibility with standard computer water-cooling fittings, while the separate discharge valve enables controlled pressure release. The dual compatibility of the pump with Schrader and Sclaverand (Presta) valves adds practical utility outside PC use, and the included pump holder allows convenient storage in typical case or workshop setups.

Suitable for

• Pressure testing complete custom water-cooling loops during build or maintenance
• Verifying seals on radiators, fittings, reservoirs, and tubing
• Component-by-component leak checks before final assembly
• Portable pressure checks in workshop or at events where a compact tester is needed

When it may not be suitable

The Dr. Drop is designed for low-pressure leak testing of water-cooling systems and is not intended for high-pressure industrial applications. It does not include automated pressure control or electronic logging, so it may be less suitable for workflows requiring precise automated test cycles or long-term unattended monitoring. Users needing adapters for non-standard hose connections should verify compatibility or obtain suitable fittings separately.

Key specifications

• Function: manual pressure tester with integrated hand air pump
• Manometer: large analogue gauge, 63 mm diameter for precise reading
• Thread connection: G1/4 inner thread for hose fitting attachment
• Valves: test valve for pressurizing and separate discharge valve for controlled depressurization
• Compatibility: pump fits Schrader (car) and Sclaverand/Presta (bicycle) valves
• Finish / color: black

How to use

Connect a hose fitting or adapter to the G1/4 inner thread and attach the tester to the loop or component you want to check. Use the integrated hand pump to pressurize the system to the recommended test pressure while monitoring the large manometer. Inspect all fittings, tubing and radiators for signs of pressure loss or visible leaks. When the test is complete, open the discharge valve to safely release the pressure and remove the tester. Follow manufacturer guidance for maximum safe test pressures for your specific components.

What to consider before purchase

• Ensure your fittings or adapters are compatible with a G1/4 inner thread or obtain the correct hose fitting separately
• Confirm the manual hand pump and indicated pressure range meet your testing requirements
• Check whether you require electronic logging or automated testing tools in addition to a manual tester
• Note the product is intended for low-pressure leak testing of PC water-cooling systems, not industrial high-pressure use

Usage recommendations

Use moderate test pressures recommended by component manufacturers, monitor the manometer during the entire test period, and always perform tests over an absorbent surface or with protective measures in place to limit fluid damage if a leak occurs. Store the pump mounted in the supplied holder when not in use to keep the unit accessible and protected.