HQUA-TWS-12 Ultraviolet Water Purifier Filter for Whole House Water Purification,12GPM 120V, 1 Extra UV Lamp + 1 Extra Quartz Sleeve

Work as it should. No leaks. Well made. Easy installation. No bacteria in the water.

Yearly maintenance consists of changing the UV tube and cleaning the quartz tube. Remove the old UV tube and put aside. Next, following the instructions, shut off the water to the unit, drain that loop and remove the gasketing rings on each end. Remember that gloves must be worn when handling quartz glass as hand oil will eat at them. Remove the tube and clean it, as per the instructions. I have clean softened water so the outside of the tube was fine. What the instructions don't cover is that the UV bulb heat causes outgassing of the plastic guard on the tube...which puts a film on the INSIDE of the tube (like the film on the inside of your car windshield). How to clean it, the instructions don't say. HINT #1: Get a 24" claw mechanic's pickup tool like this: www.amazon.com/ALINNA-Flexible-Grabber-Bendable-Reaching/dp/B098F3VWDV/ and a piece of paper towel. Gather a dry piece of the towel up in a LOOSE wad with the pickup tool and gentle feed it down the quartz tube, turning it gentle to wipe the inside of the tube. Gently pull it out. Now reassemble the tube in the filter house and reseal it with the o-rings and collars. Put on the gloves if you haven't and feed the new tube in. Now HINT #2: You have to unplug the ballast and replug it after connecting the UV tube to the ballast 4 conductor connector. If you never unplug the ballast before connecting the new lamp, it won't come on. Hope this helps. My original review, a year ago...this still holds.=================================== I've been a professional mechanical contractor. The gear was was well made and straightforward to install. The one item damaged in shipment was replaced cheerfully and immediately; they even gave me two in place of the one busted one. That's service and customer attention!

This was installed at the end of a water filtration system. Fantastic results. Easy installation. Forget the cheap tape nobody can figure out and just use pipe dope. Rectorseal #5 and youll never get a leak. Comes with a spare bulb and spare glass tube. Great deal.

Excellent product. I had a minor issue with the ballast. HQUA technical support responded quickly and sent a replacement ballast to fix the problem. They were great. Can't say enough about the service.

Installation was easy, used flexible stainless steel lines for inlet and outlet connections. Make sure to plug uv light into the 4 prong connection head before attaching to unit and securing with the detent clip followed by plugging into outlet power. Also make sure to use the sleeve/bulb side of the unit as the outlet side, otherwise there is a drop in water pressure. Overall a well built uv light, you will need basic plumbing skills and common sense, the provided instructions suck.

These UV systems have been a wonderful addition to our family cottages. While we have been using the lake water for decades (it is regularly tested and determined to be potable), with these installed, we have an added level of confidence in the safety of our water. They are easy to operate and verify they are working.

I bought the HQUA-TWS-12 because of its space saving ability with both the input and output lines on the same end of the unit. I still had to work a bit on plumbing to get it all to fit how and where i wanted to with a minimal footprint. I did not add the sampling valves as the manufacturer recommended because I have one right at the pressure tank, and many faucets around the house anyways. I can sufficiently test if there is bacteria in my incoming supply as well as if it is in my pipes. Plumbing and soldering the unit in took several hours, but the unit feels solid. I had zero issues with leaking after following the assembly instructions. All gaskets were provided. I have a thermostat control to prevent water heating during periods of no water usage (overnight and when no-one is home). The unit will heat the water in the UV sanitizer to 80 and turn off the bulb. Once the inrush of cold water cools the unit down to 70 it will turn back on. With this setting it does not take long at all to turn the bulb back on so no loss of UV exposure to any amount of water. I did have an issue where the ballast was not working properly. I emailed the seller and they promptly replied and within three days I had two new ballasts AND two new bulbs. Great response time and customer service there, thanks James. My only major gripe is that the ballast is not safety certified for North America UL, CSA, or ETL (US/CAN). Being in the certification world myself, I understand the importance of this certification. That said, the ballast construction seems solid although there is no way to tell without performing the tests to the applicable standard. (UL 935)

Installed by professional plumbers. Leaked immediately and never got it to work. Had to buy a different brand.

Got this U/V Water system for our RV. It comes with concise and clear installation & maintenance instructions. We installed it where the water enters the RV (in the front storage area) so that all of our water in the RV is treated. We installed shut-off valves on the water lines on the inflow & outflow of the system so that it can be bypassed if desired (personal choice). The seller was great to deal with. We were told that for winterizing, we can either blow out the water and/or use plumber's anti-freeze. Highly recommend this item and this seller. I would mention that while replacement quartz sleeves are available on Amazon.ca, I did have to go to Amazon.com to get replacement U/V bulbs... however, they did arrive super fast so not a big issue. (I order extras as I like to be prepared, not because they were needed. The system comes with an extra sleeve & bulb).

Easy install better than the original. Smaller foot print.