VIVOHOME 530 GPH Submersible Pond Filter Pump Fountain Kits with Sterilizer Suitable for Ponds of 920 Gallons, Water Pump Built In

This is my first review on Amazon and I had to do it, I have had so much trouble trying to keep my Koi pond clean and I bought all kind of clear water products and algae products that it was a joke and some kinda did the job but nothing for the long run. Unfortunately I didn't take pictures to show but before I installed this item I could not see my koi fishes swimming at the bottom at all, on day 3 I already began to see the shapes of the kois swimming, by day 5 I could actually see them, and in approximately 9 days my pond was amazingly clear, I honestly could not believe it. One thing I did was to clean the filter everyday for the first 5 days and then every other day until approximately day 15. Yes, my pond was horribly nasty and that is why I cleaned it everyday at the beginning and every time I cleaned it, it was super dirty. Again, I think this is my first review ever and I had to so people struggling with a nasty pond, could benefit from it. It really works wonders. I have had it already for approximately 3 months and I have not had to add anything else in my pond but I do still clean it at least once a week. I live in a rural area with a lot of trees so there are a lot of external contaminants around the pond, but 100% recommended and it really works.

Purchased for a 150 gallon patio pond. Runs the waterfall built in and a separate waterfall / filter I made with no issues. Easy to clean.

Wonderful! Crystal clear water in 5 days.The 1st picture is my water on Friday when I put the filter in. The 2nd picture was taken the next Monday. It is now even clearer. Would highly recommend!

The filter has a pretty good flow, it puts out a lot of water, but I don't like that I cannot turn off the UV light. The only way to run the filter without UV is to remove the UV bulb entirely. It's not too difficult of a process, but it's still a hassle when there could have easily been a separate power cord with a switch for the light. It's not always a good idea to run UV bulbs full time, especially in smaller ponds. I'm using this in my indoor goldfish pond, and I don't have a lot of algae so I don't want the UV on full time.Other than that, it's a pretty good filter. It has a good amount of bio media, which is nice, and the sponge is large and does a reasonably good job of catching debris. It's not the easiest thing to clean though. You have to hall the whole thing out of the pond, unscrew the spout, and unclamp the top before you can get to the sponge. Don't forget there is a small screw that comes factory installed that keeps the top on! You must remove that the first time you open it up. I see no reason to put it back in though, the clamps hold it fine.Anyway, all in all, it does a pretty good job.

This product is so simple to use. Place the fountain stem on the unit and put it in your pond. The amount of algae that dissipates every day is encouraging. My fault for not buying the larger size but this one is doing the job. My pond ( 1,300 gallons) looked like pea soup and chemicals were not cutting it. I bought a fine filter pad and put it under the waterfall. Placed this pump on the other end. I can already see 3’ down after just two days.I did remove the hidden screw on the side that screws in the top. This makes the lid removable for easy cleaning purposes. This screw is unnecessary and is not mentioned in the instructions. The unit is surprisingly heavy duty.Update:It has been three days running the fountain and using my roll of fine aquarium filter under the waterfall. The pond has gone from pea soup to clear. I can now see the koi swimming on the bottom of the pond. I am convinced that the uv light is killing the algae ( not string algae) that had filled our pond.

The pump worked fine for about a month, then the UV quit. I changed the bulb several times, but it just doesn't work at all. Pretty disappointing, since that was why I bought this particular pump in the first place.

Excellent system for a small pond. Does what it says it does. Been running it for over a month and cleaned it out today, excellent filtration system for a small pond. Would recommend.

This is a fish-saver. No matter how often I cleaned the filters on my other pumps, the algae just kept getting thicker, like dark green soup, but this UV filter cleared it all up in just a few days.The first one worked so hard for so long (couple of years) that I feared it would go out and so I bought another. The bulb didn't work in the second one but the seller quickly got a replacement bulb to me.The first pump still works.