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You may want to switch back and forth between Massage and Expression mode, especially if you find that your milk flow has slowed down. Never pump with the suction so high that it causes pain and/or damage. Slowly increase the suction level until you are comfortable. Slowly decrease your cycle speed while increasing the vacuum level. Once this happens, switch to Expression Mode starting on Cycle 54 / Vacuum 4 or 5 (or whatever level you were using in Massage Mode). It is generally recommended to start in Massage Mode on Cycle 70 / Vacuum 1 and slowly increase the vacuum until you have reached a letdown and the milk has started flowing (you may feel a pins and needle sensation or see the milk start to spray).

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Many prefer to turn on the pump first (to avoid that initial shocking jolt of a pump going full force), press the wavy line or “bacon” button to start the massage mode, and then attach the flange to their breast.

It is important to note that S1s and S2s start in expression mode. Night light: Turns light on and off (2 levels).Expression mode mimics slow, deep suckling once milk flow has begun. (Some people affectionately refer to massage mode as “bacon mode” due to the three wavy lines resembling bacon.) Massage mode mimics the quick gentle suckling of a baby to initiate a letdown.

Massage/Expression Button: Switches between massage and expression mode.

Vacuum level refers to the suction strength, or how strongly the pump will suck.

Vacuum Buttons (+/-): These increase/decrease the vacuum strength.

Cycle speed refers to how many times the pump sucks and releases per minute.

Cycle Buttons (+/-): These increase/decrease the cycle speed.

Power button: Turns the pump on and off.

On the front of the pump, you’ll see the following buttons and controls, along with a digital screen: To single pump, place the port cap on the port not being used. To double pump, use both tubes and ports on the pump. Then, attach one end of the tubing to the backflow protector and the other to the pump. Attach the backflow protector into the top of the breast shield using a twisting motion.

Then, put together the backflow protectors by inserting the diaphragm into the base, then putting the top into the base and giving it a twist to secure it. To assemble all your pump parts, first attach the duckbill valves to the underside of the flange, and then screw the bottles onto the flanges. Some Spectra users prefer to pump into Avent bottles. The majority of wide mouth baby bottles fit Spectra flanges.

Bottles – As you pump, your breast milk will flow into the attached bottles.

Tubing – Your breast pump parts are connected to the pump motor via tubing.

Backflow Protectors – This silicone diaphragm prevents milk from flowing back into the tubing.

Duckbill Valves – Valves create the suction that pulls milk from your breasts by stretching and releasing each time the pump motor pulls at them.

20mm and 32mm breast shields are available on the Spectra Baby website, or other sizes are available on amazon from brands like Nenesupply and Maymom. If pumping is painful for you, you may need a different size.

(They are also called breast shields or horns.) Spectra pumps come standard with 24mm and 28mm flanges.

Flanges – This is the part that is placed on your breast.

The Spectra S1 and S2 pump parts consist of:

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(If you don’t have your Spectra yet, you may be able to get it free through insurance super easily here, or you can buy it from amazon.) What are each of the breast pump parts, what do they do, and how do you put them together?

#Spectra s2plus and spectra 1 how to

The Spectra S1 and S2 are both great breast pumps! Here’s everything you need to know about how to use them. I only recommend products I love! More info here. This post may contain affiliate links, which means that if you click through and make a purchase, I’ll be compensated at no additional cost to you. Did you just get an S1 or S2? Or are you looking to purchase and doing some research? Here’s everything you need to know about how to use a Spectra S1/S2 breast pump, including assembling pump parts, what settings to use, and general tips and tricks.