DIY 12 Volt water pump at home: improving a private home

In this article you will learn how to make a 12 Volt water pump with your own hands. Such homemade products make life much easier for summer residents and private owners. Below we will look at a method for making a 12 Volt centrifugal pump from caps, jars and syringes. If you have a 3D printer, you can print all the pump elements.

What is needed to make a 12 Volt pump from caps and a syringe

1. 3 plastic jar lids of the same size
2. Two/three syringes of 5 or 10 milliliters (depending on the size of the hoses and the required pressure)
3. 12 Volt motor (order from AliExpress)
4. Glue gun
5. Scissors
6. Flexible ruler, marker
7. Soldering iron
8. power unit

Making a 12 Volt centrifugal pump with your own hands

• Prepare materials and tools - wash, clean, dry.
• We cut off the top from one of the lids - only the frame should remain.
• In the other two, cut holes in the center. One hole is needed for the motor shaft; select its dimensions yourself depending on your motor. Make a hole in the second cap for the syringe. Choose a syringe according to your needs - a 5 milliliter syringe is also suitable for spot watering. The size of the syringe also depends on the water supply hose.
• Glue the syringe and water supply tube into the designated hole.
• In the larger section of the cover, make a hole for the motor shaft. It should be slightly smaller than the diameter of the shaft so that the circle with the blades does not fly off it.
• Apply glue to the motor and insert its shaft into the hole made. The motor must be tightly and tightly connected to the housing.
• From a 10/20 milliliter syringe, cut out plates 1 cm high and 2-3 cm long. These will be the motor blades.
• Glue the plates onto the circle with a glue gun. They should be located in the fan/cooler, but should not touch the shaft.
• Remove the plastic ring under the cap from a regular bottle. Glue it to the fixed blades. This is necessary to hold the blades together.
• Glue together the frame of the lid and the base (the part with the motor and the circle with the blades).
• Glue the cover with the water supply tube to the frame.
• Make a hole in the side of the body for the water outlet tube (syringe). Its dimensions depend on the thickness of the syringe and the hose to which you will connect the pump. To make it, use scissors or a soldering iron.
• Insert the syringe into the hole. Seal everything with a glue gun.
• Connect the motor wires to the power supply.
• Check the pump operation.

How it works/how to use a homemade pump on 12 Volt

The power supply converts the mains voltage to 12 Volts and supplies it to the motor. The motor shaft rotates, a circle with blades is tightly connected to it. The shaft rotates the circle, water flows through the supply syringe directly into the center. It fills the entire internal volume of the pump. The blades push it through the outlet tube into the hose with increased pressure.

Additionally

You can make the same pump from a ready-made housing - an irrigation nozzle. It is sold in every agricultural store. You will need to install the motor to a ready-made circle with blades and connect it to the power supply.This design will be more reliable if manufactured correctly.

You can also make a 12-volt water pump by printing all its elements on a 3D printer - ready-made designs are publicly available. With this manufacturing method, you need to choose high-quality plastic for printing.