Kamoer NKP low flow peristaltic pump 12V dc DIY liquid small dosing pump for aquarium lab analytical 3mm ID x 5mm OD

I live in the deep South where it's hot and humid. We use the A/C for 10 months of the year. If I forget to put vinegar down the condensate drain every month, it clogs. After dealing with clogs a couple times this year, I decided to use this peristaltic pump to deliver white vinegar into the condensate drain every week. I have it wired to a zigbee relay, and then entire system is controlled by a Hubitat hub. One end of the tubing from the pump sites in the condensate drain, and the other end is in gallon jug of white vinegar. Every Saturday morning, a Hubitat rule turns on the relay for 30 seconds and then shut it off. This delivers about 50 mL of vinegar down the condensate drain. So far, it has stayed clear with no clogs.

I'm using 6 of these pumps (one per pot) in an ESP32 controller based plant watering system I designed and built. I've got a container I'm using as a water reservoir, and use flexible silicone tubing to deliver water, with a tee at each point where I've got a pump connected. I'm driving these pumps with only 5V instead of the 12V spec, and they work fine (at a lower flow rate, of course). I've calibrated the pumps to know their actual flow rates (they vary about +/-15 percent from average). Although there is unit-to-unit variation, they are very repeatable over time once calibrated. I've got soil moisture sensors in each pot, so with the appropriate number of days between waterings, and when the soil reaches the appropriate level of dryness, I command these pumps to deliver a specific amount of water (different for each plant). I've been using them for several months now, and all are still working perfectly.

It has great flow rate for a such a small inexpensive pump.

Item as described, arrived faster than anticipated at a great price Can't ask for much more than that!

Peristaltic pump needs external 12 volt DC power supply. Included silicone tubing has small diameter and a little difficult to manipulate. Pump works well but slowly due to small diameter tubing.

Decent pump and a standard model for Kamoer. Tubing size lines up well with standard aquarium 3/16 "Airline Tubing."

Works will and is cheap

This motor was not even running for a week and the tubbing cracked causing Hundreds of dollars in damage.