Moistenland Water Flow Meter, Water Meter, Standard 3/4" Thread, High Accuracy and IP6X Waterproof, Perfect for Garden Hose/RVs

works great for monitoring water on rv when filing fresh tank or rinsing black tank. seems to be accurate when filling 5gallon bucket. build quality seems good

I've added this item to the list of freshwater fill supplies kept in our travel trailer. The last time out, we had some water (apparently prematurely) run out of our "overflow tube", which we interpreted as having our fresh water tank full. It turned out to be just barely 2/3 filled. We didn't run out, but also didn't have much to "run off" after just a 2 day stay. At home, I took the opportunity to sanitize the freshwater tank with a cup of bleach, and measure the fill capacity of the tank with this meter. The tank didn't overflow until just about exactly 37.2 gallons, which (37 gal.) is the spec on our tank. This gave me peace of mind that there are not any leaks, and that the 1/3, 2/3, and "full" sensors are accurate. By using it each time we fill, we can differentiate between an actual full tank, and a "false overfill".

This does work under normal water pressure and flow, but does not work with normal water pressure with low flow such as drip irrigation. The description states water flow range: 0.13~12GPM (0.5~45.5L/Min), and I totally missed that. One would need a drip irrigation output minimum of 8 to 10 gallons per hour for this to work. Just sharing this for others in case they miss it.

as described

It tells you the flow rate per minute as well as how many gallons you have put in. You must check to see what info is being displayed or you will be confused as I was at first. Would buy again.

Hooked up to my 5th wheel so I know my tank levels.

Helped me find a leak and realize water was running underneath my house.

Assuming this is intended for outdoor use, the case should have been made weathertight. Moisture gets inside the display, and then I can’t see it, rendering it useless.