MMonDod 1/2 Inch NPT Mini Float Ball Valve Kit Automatic Fill Feed Humidifier Tank Pond Shut Off Water Float Ball Valve, 2 Pack

Good product

easy to install. works perfectly.

I'm using it for a small aquaculture system. I have a 55 gallon drum mounted above the fish tank (the bottom of the drum is 2' higher than the top of the fish tank). I mix the de-chlorinating compound into tap water in the drum as I fill it, then use water from the fish tank to feed and water my garden. When the fish tank go low, I was using a siphon to refill it, and yes, about ever 3rd time I would forget about the siphon and the entire 55 gallon drum would drain into the tank, overflowing it and wasting 40 gallons of water. I installed this using the pipe thread. I attached a hose barb to that and clear poly hose to this valve that went to the siphon starter ( a jiggler) in the 55 gallon drum. Unfortunately, the opening in the valve is so small, I could not get the siphon started with it. So, I had to add a tee, another fitting, and a 1/2" PVC valve to the setup so I could open the line at the bottom to get a siphon started. It's kind of a pain, but this actually does seem to work. Once the siphon is going, the valve stops it when the tank is full. It also holds the siphon very well, So it just automatically keeps the tank full while I use water from it. Note: The flow is very low volume. If I use 10 gallons of water from the tank, it will be an hour or so before it is refilled. I do also recognize that there is a possibility that this valve could fail in the open position, but the water going into it is perfectly clean, so I think that will be rare. In my setup, the worst that can happen is the 55 gallon drum just continues to drain until it is empty and then no more water will be lost. I can take that chance. So far, so good. I had no trouble installing it, it is a robust part. Anyone who broke it was doing something wrong, or had a faulty unit to begin with. I think the plastic is good solution, as it can't corrode. For gravity feed like this, it's just fine. One thing I might do, in order to fix the low flow, they sent me two of these. I could tee the line again and run two valves to the tank. That would double the flow. For right now, it is great. Oh, yes, and it only took the normal amount of teflon tape to seal the hose bib pipe fitting on.

Flawless, ordering more, use in chicken and quail watering systems.

Works as good as original. Used one for doggy bowl (autofill) the other for my Hessaire cooler. $30. Cheaper 👍