Amarine-made 12v Water Pressure Diaphragm Pump 4.3 L/min 1.1 GPM 35 PSI - Caravan/rv/Boat/Marine

worked good

I liked the fact it was a 12 volt system. It works very well and is fairly quiet. The only thing was getting the pump wired for use. There is no on / off switch so I set it up to plug into a 12 volt socket so I can unplug it easily.

This little diaphragm pump works really well for sending water from my fish pond to a micro-irrigation system in my garden. The current draw is less than 3 amps, so it is suitable for running on a small (18 Ah, 12 v) solar powered battery. The self priming feature is excellent as it can pump air or water, and this takes away the frustration of the priming problems with a small centrifugal pump.I would have given the pump 5 stars, except for a problem I had with the pressure sensor. This sensor (in the box to the right of the pump) is designed to stop the pump if a pressure higher than the maximum (about 2.5 bar) is sensed. With my irrigation system the sensor was switching on and off rapidly (about 3 times per second), even though the system is all at ground level. After a while the pump/sensor quit entirely and it was impossible to wake up the pump. I then shorted out the pressure sensor and the system now works fine.

This pump was about the cheapest I can find that was self priming without being submersible. I use this pump at a restaurant pumping degreaser from a 5 gallon bucket. We use about 5 gallons a week. I have the pump mounted on the wall and under the 3 compartment sink. The lift is around 4 feet without any issues. It gets used everyday. I have 2 12v 7amp SLA batteries connected in parallel.4th month UPDATE :This pump is still working awesome. It has pumped about 80 gallons of sanitizer in 4 months. Power source is 2 12v 7ah SLA connected in parallel. I have not has to charge it yet. I should do it soon since it has been 4 months considering SLA batteries are best kept charged.On a side note: when I first got this product, I connected it to my 2 gallon manual pump sprayer. With only water, I was curious to see how well it would work if I ever wanted to connect it to a pesticide sprayer. It didn't work so well due to low pressure. I have a feeling that if I used a 100psi pump, it would do much better. Just incase someone was thinking of using it for a sprayer.******** 3 year update ***********This pump is still working great pumping degeaser into a 3 compartment sink. Still using about 5 gallons a week. I can't say anything bad about the pump. I would buy it again without thinking twice.

Works very well! Install at my off grid cabin for a booster pump on my shower. Excellent buy!! Replaced old one that used 7amps to operate with the same flow. Now my pump only uses 3.5 amps.