Summary

The impeller for the garden pump was created as a spare part. I have to wait too long for a replacement from China. It is not a sin to do it yourself when the printer stands on the desk.

Yellow one is the original - lemon is My spare part.
Rotor dimensions:
Propeller diameter 31mm
Blade thickness 2mm
60 degree angle between blades
Z high 20mm
Axle diameter 7mm

Print Settings

Printer Brand:

Creality

                                            <p class="detail-setting printer"><strong>Printer: </strong>                     <div><p>Ender 3</p></div></p>                                                                                <p class="detail-setting rafts"><strong>Rafts: </strong>                     <div><p>No</p></div></p>                                                                                <p class="detail-setting supports"><strong>Supports: </strong>                     <div><p>Yes</p></div></p>                                                                                <p class="detail-setting resolution"><strong>Resolution: </strong>                     <div><p>0.2</p></div></p>                                                                                <p class="detail-setting infill"><strong>Infill: </strong>                     <div><p>30</p></div></p>                                                    <strong>Filament:</strong> 3dActive PLA                Lemon                    <br>                        <p class="detail-setting notes"><strong>Notes: </strong>                    </p><div><p>I used tree-support, maybe unnecessarily. 4g of material ~aprox printing time 30m (on My Ender)</p></div>

Post-Printing

                <p class="detail-image"><img src="https://cdn.thingiverse.com/assets/57/8e/f3/72/c5/20200703_204801.jpg"></p>                <p class="detail-image"><img src="https://cdn.thingiverse.com/assets/d3/cf/df/a1/35/20200703_204813.jpg"></p>

Pump Impeller