bayite BYT-7A006 DC 12V Solar Hot Water Heater Circulation Pump Low Noise 3M Discharge Head 2.1GPM

I used this pump to install a hot water recirculation system in our RV. The water heater is in the rear and the bathroom is forward. A lot of water is wasted waiting for the hot water to arrive. We boondock a lot so conserving water is important. This pump is almost silent. I did use caution to ensure the attaching fittings were not too tight (to prevent breakage of the plastic fittings)...but more than tight enough to prevent leaks. The amp draw is tiny. I tied this to a 12 volt digital temperature controller that is set at 100/85 degrees Fahrenheit . The temperature probe is on the cold water side where the hot water will eventually get to when the pump is running. With the system ON, if the cold water side is below 85 degrees, the pump will turn on and pump hot water through the supply plumbing. When the probe reaches 100 degrees the controller turns the pump off. Now I have hot water within 2' of the shower and lavatory. It takes about 30 seconds for this cycle to complete. This will also be good for our winter camping as it will keep warm/hot water in the lines. This is a low volume pump. It does not move much water when running. But again...there is no need for it to. I remain very pleased with this pump. I can't speak to the longevity, but for now it is perfect.

Bought this to make a rock water feature. Wired it up to a small solar panel and it works great. Flow rate is good as long as you have sun but you could also wire this up to a battery if necessary. Pretty quiet and has been running for 3 months now.

[Update after 8 months] I disabled and drained the pumps (I have 3) for a few months in the winter, but left them connected and exposed to freezing temps. And we had some serious freezing this February! When I reenabled the pumps in the spring, they resumed working as before. So, reliability seems good. They run on a timer now, about 8 hours a day every day. I guess that means they've been working for well over 1000 hours so far, in outdoor conditions (though protected from direct sunlight). [Original] I got this pump for a remote-watering setup, and planned to run it off a solar panel. I'd have water pressure whenever the sun is shining, and can use that little bit of pressure to recirculate the water to cut down on algae growth. And, when the hose timer opens, the pump will also push water through the hose timer at a more-reliable rate. (Relying on gravity alone for pushing water through the timer has been unreliable.) That is, the pump will push water up to the top of the tank to recirculate through a 1/4" hose, and also down to a hose timer to irrigate through a 1/2" hose. A 1/2" irrigation riser with a "barb tee" was an easy addition to the output of this pump. The pump is rated at 12V, 0.7A, which is 8.4W, so I got a 10W solar panel. In July Texas sun, that solar panel couldn't get the pump to move. It seems the startup current draw for this pump far exceeds 0.7A, because it pulled the solar panel output down from 17V to 6V and the pump just made a buzzing noise but wouldn't spin. When connected to a battery, the pump works great and drained a bucket of water so fast I barely had time to measure voltages. If I got the pump started with the battery, and then disconnected the battery but left the solar panel connected, the pump kept running, but not as briskly. I didn't measure the current draw, but I've got some doubts about the claimed power requirements of this pump and the solar panel. I might order a higher-wattage solar panel, but more likely, I'll just run this thing off a battery with a timer (so that it doesn't run 24/7 and drain the battery), and use the solar panel to charge up the battery. This cheap-and-easy remote watering setup keeps getting more complicated and expensive!

Boaught it for one thing didn’t end up using it but found somthing cool I needed the little guy for. Great pump!!

as advertised. works so far flawlessly

For a water pump, this would be a 5 star review. If that's what you're purchase is for, then by all means, its a good pump for water applications. My purchase was for a homebrew pump. I wasn't expecting anything too amazing but I was pleasantly surprised by the initial performance. The pump rate is a little low for me to get a really good whirlpool, but is good enough to keep things circulating so my heating elements don't scorch the wort. The second time I used the pump, it wouldn't start. I had to take it apart and clean it again before it would get going. I thought maybe I didn't clean it well enough after the previous use. At the end of that brew day, I cleaned the pump and decided to leave it disassembled until I needed it again. On the third use, I reassembled the pump, connected all my hoses, plugged the pump in, and it wouldn't work. I had to disassemble, turn the impeller a few times to get it going, then it took off. So, for what it is, it does a decent job. Its super quite and has no issues with wort break material and smaller bits of pellet hops. I recommend a hop spider just to keep larger hop particles from clogging the pump. If you're looking for a homebrew pump, this is a good entry level unit to get you going. Just be sure to clean it well, and check rotation before connecting everything.

It arrived quickly and as described I have not had the opportunity to test it yet. I like the design and specifications. I’m hoping this will replace my former solar pump. I like that this is a sealed unit as my former pump while it served me well had venting on top with exposed circuits.

I got this to replace the pump in a tiny, solar-powered, fountain (one of those bird-feeder type things). It would not start at all when I put it in a pail of water and hooked it to the solar panel. I took off the manifold (four screws), and I could get it to run out of water, if I spun it a few times with my finger. As soon as I put it in the water, it stopped. It looks like the force that the water applies to the little propeller is more than the motor can manage. Furthermore, once it was spinning, if I disrupted the light to the solar panel for half a second, the pump would not start again until I pushed it with my finger.

This little pump out performs another pump that is twice the size, it is very quiet and pumps water very efficiently I am very happy with it and will order a second one shortly. Highly recommended!

works great for a solar pool heater

These little pumps have multiple uses. I purchased this to replace my existing water feature pump which failed. These pumps are solid little things and very efficient.

Ran continuously for the summer, no problems. It's submersible and the threaded input allows for a good and easy filter installation to protect it.

Pour notre douche au chalet!