How to Use the Deepsea Prime Electric Breast Pump: Modes, Levels and Cleaning

October 31, 2026

You have your new Deepsea Prime Electric Breast Pump in your hands. Now what? The good news is that it is simple to use once you know the steps. This guide shows you how to set it up, charge it, pick a mode and level, and clean it, in plain steps.

Key Takeaways

The Prime Electric has 3 modes (Let-Down, Comfort and Express) and 9 suction levels.
The display shows your mode and level, so you always know your setting.
It charges by USB-C and switches itself off after 30 minutes.
Wash all parts except the motor. Never wash the motor.
Start on a low level and raise it slowly to what feels comfortable.

What Is in Your Pump

The Prime Electric Breast Pump is a closed system with a backflow protector. These are the main parts you will handle:

Breast shield (flange): the cone that sits on your breast, with a soft petal massage cushion.
Connector with valve and diaphragm: joins the shield to the pump.
Feeder bottle: collects the milk.
Motor: the part with the display and buttons.

Step 1: Wash the Parts

Before first use, wash your hands and wash all parts except the motor in warm, soapy water. Rinse well and let them dry. Never wash the motor.

Step 2: Put It Together

Follow the 5 assembly steps in your pump box. Press the parts together firmly so there are no gaps. A snug fit helps the pump work as it should.

Step 3: Charge It

Charge the pump with the USB-C cable. Charge it fully before your first session. The battery runs for up to about 2 hours. In areas with load shedding, charge it whenever power is on. If the pump does not turn on, see our troubleshooting guide.

Step 4: Place the Shield

Sit comfortably and centre the nipple in the shield. The Prime Electric comes with a 24mm flange and a 22mm massager pad. If the fit feels tight or loose, our flange size guide explains how to check it.

Step 5: Pick a Mode

Mode	When to use it
Let-Down	Start here. Quick, light pulses to begin your session.
Comfort	A gentle, steady rhythm when you want an easy session.
Express	Slower, deeper pulls for the main part of your session.

Many mothers start with Let-Down for the first couple of minutes, then switch to Express or Comfort.

Step 6: Set Your Level

There are 9 suction levels. Start at level 1 and raise it one step at a time. Stop at the level that feels comfortable for you. Higher is not always better, and pumping should never feel painful. If it does, lower the level and check the fit of the shield.

Step 7: Pump and Store

Many mothers pump for about 15 to 20 minutes. The pump switches itself off after 30 minutes, so you can start it again if you need more time. Pour the milk into a clean container, label it and store it. Our breast milk storage guide shows how.