1600GPH Sub Water Pump for Pond Waterfall, Statuary, Hydroponics

UPDATE 6/27/21: Since I most recently purchased the same brand pump at a 4500gph, but it won't let me review another gph pump, it will only let me update my review on the 1600gph pump: the 4500gph pump at 2 foot lift is pumping nowhere near 4500gph. Maybe 2000-2500gph. While that is an estimate, I compare it to the temporary 3800gph utility pump i put on the waterfall while waiting for this one to be delivered and the 4500gph is pumping out way less than the 3800gph pump did, so....I don't think this pump is anywhere near the 4500gph it claims to be. I would need to double that size if it's only really pumping half the gallons it says it does. Love the sturdiness of the pump and they have good longevity, but up the size if you want what you are looking for as far as output goes. This pump (1600gph) is so amazing I bought two! I use them in my koi ponds to pump water from the bottom of the pond up into a filtration system and out. This pump is tough and barely loses any gph when pumping at 5' head. Highly recommend it. Ran without issues 24/7 since I bought it in the spring, though I did remove it for winter shutdown, of course. It's pretty much maintenance free and easy to clean if needed (I never needed to) and it's outflow nozzle is adjustable; which I like. You can take the cover off, but it takes some finesse to do so as you have to line up the pump just right to detach the plastic cover. No need to cut it like others have said, you just have to take your time and figure it out. My only suggestion is that they make the step attachment for the outflow bigger so it can accommodate large tubing if needed. Other than that, A+

Good pump

Pump works great. Great flow. Quiet. Can be configured several ways.

The first one I bought did well as a Koi Pond pump to circulate water through a canister filter drum, and then to a water fall for aeration. I got six months out of it but the impeller blade broke, and it was a hard plastic material. I have no idea how that happened. I decided to get another one, as the pump is quiet, powerful, and runs 24-7 without a hitch. Recommend you put it in a filter bag. If you do this it will keep the plastic prefilter inlet clearer for longer. and it is easier to rinse off with a hose every four or five days. Made in the PRC, so fingers crossed.

Had for a while now. No issues working great for my 150 gallon pond.

Great pump for 500 gallon pond

Very strong working pump

Update: Awful! One month after installation the pump failed completely. Motor seized, locked in place. My similar Little Giant pump has been running for ten years straight now, 8 months a year, in Southern Wisconsin. I had to replace my 880 gallon fountain pump, so I purchased the Vivosun 1600 gph PG1600-S. I installed the pump and plugged it in, assuming the flow might be overwhelming. To my surprise, the flow was less than my previous 880 gph pump. That's fine for me, because it looks good. Out of curiosity, I decided to measure the flow. I have a 3 foot pipe (head), which I routed directly into a 5 gallon bucket without a restriction at the top of the pipe. It took exactly 61 seconds to fill the bucket. Simple math says that is roughly 300 gallons per hour. The manual suggests it should be 1189 gallons per hour for a 3.3' vertical rise using 3/4" tube/pipe. Yes, I used an adapter to reduce down to a 5/8" inside diameter pipe, and that would reduce total flow, but it should also increase pressure at the end of the pipe. Instead, the water only gurgles about 1" above the 5/8" pipe. In conclusion, although it works fine for my application (see video), I strongly stand behind the other reviewers who are saying the product does not meet its specification. Also, someone needs to send a spell checker to the Vivosun Technical Writing team, or teach them how to spell fountain. That's just embarrassing. Now let's see how long it runs. All things considered, I am very concerned. My 2 star rating reflects it. I'll update the review over time.

Una excelente marca,y he visto el crecimiento de mis tilapias

It's great. Unfortunately, it is much too powerful for my little pond. LOL.

I bought this pump and it worked great but it has a ceramic shaft. would be better if it had a stronger shaft. anyways the shaft cracked but customer service was awesome, return was easy so i bought another one of their products to replace the one that broke.

Very silent does the job effectively

Water pressure is excellent! No complaints at all. We've used a bunch of different water pumps over the years, and this one was definitely worth the price. It's strong enough to take the water out of our pond and distribute it through a filter, to a waterfall, without issue. It comes with a bag to submerge it under water that you just quickly hose off when it gets dirty.