CUV-118

Pretty quick to install with good instructions….just a plug to fix and the water is now crystal clear.

Great item and great price. The pond water is crystal clear now. Thanks

Read the manual before buying. The Ballast is roughly 1m from the end of the cable, so shortening the cable is not possible. The device draws 29.5W, according to my wattmeter, during testing, and the ballast becomes mildly warm. The unit has its I/O in multiple directions, so do consider where it is to go. The Ballast is also reasonably large. The unit is elementary to put together and didn't leak - good. I will update the review in a week or so and comment on the water clarity. The viewports are useless in a UK summer sun. I will try them again later tonight. The best part by far is the transparent hose tail with the spinning propeller inside, showing water flow. Update 2 weeks later. My small 1000L pond is now crystal clear after being green for years. Fustratingly, I also a month ago improved by mechanical filtering, so this is not a scientific test.

Had a Jebao 18w and this is similar comstruction and design, with improvements. The removal of the UV tube and crystal cylindar is easier, the install of the UV assembly has a nice slip ring fixing so not screwing cable every time like the Jebao. The ballast is a lot more moisture resistant and complete sealed unit . .so all good. as it uses the same UV lamps and yhe quality of the crystal tube is same should perform the same, but hopefully longer before it starts blowing lamps like the Jebao. one critique is the hose fittings are a little small diameter for pipe and need a good quality ring clip to keep from leaking at hose connections, they just fall off and dont have the deep barb's . . but installed with no leaks now I wait to see tesults. Very happy with the price, same lamp size so will be replacing the other two UV's if all goes well.

Does exactly what you want it to do.

My garden fish-pond had a severe attack of "green-water" (mainly blanket weed growth) following the winter, and the water had become nearly opaque. After fitting this steriliser in front of, and in series with, the pond filter system, the water was virtually clear within a week. I can now see the fish clearly right down to more than a metre below the surface. A very effective device. It's advisable, of course, to choose a model that's capable of dealing with the particular pond size it's used for. The UV light has the effect of killing and coagulating the blanket weed spores and cells.

Purchased to replace previous 18 watt clarifier having looked for a price bracket i could afford. Had problems fitting the usual struggle with leaks and pipe clips that have a mind of their own. Ended up replacing corrugated pipe with newer more supple one as being outside for a long time they tend to become stiff and brittle .some of the clips on the market are poor and require a spanner to tighten. Finally mounted the unit on my shed next to the pond , another pain the ballast block attached to the cable means you can,t feed the the short cable through a hole in the shed to reach the electrics as with previous model. , so had to cut slot in door frame to allow access. Anyway attached plug and ran pump so water was running through unit as advised plugged in but no light showing in unit so gave up til next morning. Next day took out bulb and checked connection , turned out it was the clip in the bottom of the lamp holder , a small transparent clip which has to be pushed into the base of the bulb to lock it in place when you work out which side of the spring clips it goes in. Eureka!! we have light .. But for how long? the Ballast unit gets so hot i,m frightened it might fail and end up burning down the shed !!! Oh what fun.!!! One week on and the lamp is doing its job ok, have the " Pie Heater " resting on an old marble chopping block to diffuse some of the heat . Only time will tell how it goes on.. 1 year on new 18watt bulb still working but now can see band of light on body which shows up at night!! think this must be designed for people who use two outlets because they won,t have the sight glass. P. S. Some people buy uva lamps thinking it will kill Blanket Weed, it won,t you need a separate treatment for this. See attached photo to show you don,t need sight glass at night to show lamp is working.P.S. has failed after 2 years hole in body has appeared which was very thin , no wonder i could see the light through it !!! see pic. Jack Lumbered again.....

Easy to connect and it really does work my old one gave up cloudy water new one in within a week could see fish again value for money

Envoi et réception rapide du colis. Livré avec plusieurs accessoires de raccordement. L'appareil est installé depuis seulement 2 jours mais on voit déjà une différence de la couleur de l'eau.

je ne le recommande pas