iSpringUVF55FS Whole House UV Water Filter with Smart Flow Sensor Switch, 55W, 12 GPM

I bought the UVT55FS about 18 months ago and i never got it working correctly. I am pretty sure the ballast was bad. With many other things going on, dealing with it was on the bottom of my todo list. So I didn't get back to it until a couple of months ago.While researching a replacement, I was surprised to see this unit rated so high. Since it was, I emailed support and told them my story. I was shocked when Nick reached out to me and said the product now had a newer and better ballast and he would send it out to me with a new bulb even though the warranty was obviously long gone. So I installed the new ballast and bulb and all is well.I waited about a month to review it, just to make sure it was still working correctly. And yes, it is working great!Thank you iSpring for the surprisingly great support!

Why did you pick this product vs others?:We wanted the one that came with the automatic timer so it didn't run continuously. During the installation I pinched the gasket they included, that goes between the flow sensor and the UV filter, tearing it. I emailed them and Julius responded and asked what I needed and sent it as promptly as can be expected. One thing I did find, is that the NPT fitting I put on the inlet side does not fit properly on the UV filter, I do not think its fittings are NPT, and it had a constant leak even after using lots of tape and even some pipe dope. I finally had to make another gasket like the one included for the flow sensor and that resolved the leak. I would call on them to start including two gaskets for the UV filter itself.

The UV unit seems very well made. Installation was straightforward. No leaks after connecting all the fittings. The only installation issue was that both of the supplied clamps were slightly too small to securely clamp around the unit. I was able to jury rig different hangers. The one installation issue that found was that plastic (CPVC, PEX, etc) should not be used to connect to the UV unit since UV light will deteriorate plastic. I used flexible stainless steel. The ballast supplied is not the one mentioned in the instructions or the video. The switch is only OFF/ON. When ON, the small green light is visible, and the ballast registers 300, which is a countdown that turns off the light when water stops flowing through the unit.It was a little confusing to register the warranty since the QR code and website was not very helpful.I will have the water tested in 2 weeks to see if my positive coliform result is resolved. The state health department strongly recommended a UV sanitizer to correct this issue.

Took four hours to install. Well built. Seems to be working. Couple design components to consider1)the flow sensor to the battery pack cord could be significantly longer. I had to adjust the entire unit again so I couldn’t connect these two. Also, installing the brackets to concrete could be better if the internal holes were at least 1/2” to allow for bigger anchor bolts.Otherwise, good design. We’ll see how reliable it is with time.

I have had this product for some time now, and I must say that is wonderfully fantastic!!!! The customer service is second to none, in particular Michelle who is a great service rep and an awesome representative of the the Ispring company. I ONLY buy Ispring products due to her diligence and Ispring high standards of excellence.I highly recommend that we as consumers, purchase from companies (like Ispring) and support their employees and company vi our business and purchasing dollars.

shipping was fast and package was undamaged. while checking out how to install unit pulled out the uv bulb and found it was broken contacted amazon to determine if i should return the whole unit or to replace the uv bulb. amazon contacted ispring and nick contacted me and said that a replacement uv bulb was ordered and would be shipped asap.

I bought the UVF55FS for my rainwater system and it's working great! At first, I thought I'd wasted my money because, after completely flushing my entire system, a coliform bacteria test came out positive. It did it again after a second complete flush. I finally realized that bacteria are pretty sticky and some will inevitably remain stuck to the sides of the pipes, even after multiple attempts to wash them out. So I decided to fill the whole system with a strong concentration of chlorine bleach and I let it stand for 3 hours. Then I flushed the entire system out again until all traces of chlorine odor were gone. I continued using the system for washing but not drinking for a few days then retested for bacteria. This time, the test showed ZERO bacteria. I even let the test incubate for a couple extra days to be sure.One thing I'd recommend is NOT waste your money on the version that I did with the flow sensor. I think the flow sensor is a bad idea now that I've had some experience and more time to think about it. For one thing, the flow sensor will not turn the UV lamp on until flow rate rises to 0.66 GPM. So if you use this mode and you run some water at anything less that this rate, the bacteria-contaminated water entering the UV unit can pass right through without being sterilized. Another problem is that even when the lamp turns on, it will take it a while to come up to full intensity, allowing more unsterilized water to pass through. Yet another problem is that the lamp may not last as long if it's continuously cycled on and off. Therefore, I'm leaving mine on 100% of the time and expect to replace it in 1 year.A few corrections for the manual:On page 4, it incorrectly states the maximum water pressure allowed is 43 PSI. Page 3 apparently has the correct spec which is 85 PSI. It's also stated on page 12: 4 PSI min / 85 PSI max.On page 4, it says to make sure the inlet is at the bottom if you mount the unit vertically because they incorrectly say it will slow down water flow. It won't slow the flow regardless of putting the inlet at the top or bottom. The only way their statement could be true is if the bottom port was left open so water could fall out with no back-pressure. When installed in your home's water system, the difference between pressure-tank pressure and the back-pressure is what determines flow rate, not the orientation of the UV unit. Orientation doesn't effect this at all.On page 8, it says "Mode AUTO is highly recommended to protect the UV lamp.". Not true and definitely NOT recommended.On page 9, it says the "system is designed for continuous operation, and frequent switching will reduce ultraviolet radiation and service life." which directly contradicts the statement on page 8. I believe this statement on page 9 is correct and you should ignore the AUTO mode recommendation. Don't even purchase the version with the flow sensor so you won't have an AUTO mode in the first place!Note that if your home experiences a power outage, unless you use some kind of uninterruptable power supply, your UV sterilizer will be off and any bacteria and viruses can then pass into your potable water system when you turn on a faucet. Mine is on solar with battery storage so is much less of a problem but I still may add a UPS for the UV unit.Lastly, I DO highly recommend this unit after seeing the bacteria test results.