Review on HQUA TWS 12 UV Purifier Sterilizer for Optimal Purification by Jon Bishop

Well made and solid. The thread is clean, without burrs and chips. Very well packed. The instructions are mostly understandable, but there are a few grammatical and spelling mistakes. However, there are a few things to consider. 1. The device gets very hot after a few hours of inactivity - almost burning, but probably not dangerous. 2. Be very careful when connecting the PEX pipe to the device. UV destroys PEX and the light from the device is so bright it can be seen through the tube in the dark. I will switch the tubing to copper within 6-8 inches of the inlets and make sure the copper is bent before getting to the PEX. 3. Also, do not use "swivel" fittings, UV light can destroy the rubber seal...use teflon tape and pipe sealant (research proper technique), tighten and inspect before permanent installation leaks.