🧰 What This Tool Does

This is basically a manual vacuum pump (big syringe) used to:

• Extract oil from engines, gearboxes, or machines
• Transfer liquids (oil, coolant, water, chemicals)
• Fill or drain tight spaces where pouring is hard

It works by pulling the plunger to suck liquid and pushing to release.

⚙️ Key Features

• Multiple sizes: 100ml / 300ml / 550ml
• Transparent body: Easy to see liquid level
• Scale markings: Accurate measurement
• Flexible hose (~1m): Reaches deep or narrow areas
• Reusable & washable

These pumps are commonly used for automotive, gardening, and DIY tasks because they allow clean and precise fluid handling

📊 Size Guide (Very Important)

👉 Bigger size = fewer refills, but slightly harder to control precisely

✅ Pros

• ✔️ Cheap and reusable
• ✔️ No electricity needed
• ✔️ Very precise compared to pouring
• ✔️ Works in tight spaces

⚠️ Cons

• ❌ Manual effort required
• ❌ Not ideal for very thick grease
• ❌ Plastic models can wear out with heavy use

👍 When You Should Buy It

• ✔️ Car/bike maintenance (oil, brake fluid, coolant)
• ✔️ DIY repair work
• ✔️ Aquarium / gardening / hydroponics
• ✔️ Filling or draining hard-to-reach containers

❌ When NOT Ideal

• Heavy industrial use → better to use electric pump
• Very thick fluids → use grease gun instead

💡 Pro Tip

If you’re working on cars or bikes, go for 300ml or 550ml—
100ml becomes annoying because you’ll refill it many times.