Original unit installed in 2008, inner seal started to leak in 2019 Purchased replacement for <$150 which includes 3 filters. The reinstall took about 15 minutes, all hose diameters are the same as before so I salute the spa engineers for not tinkering with what went well the first time. Very happy with the water quality over the last 11 years. The faucet that comes with it is poorly made, doesn't fit well and stays on the sink, made of cheap chrome plated plastic. Yuk. I bought another metal faucet and it worked great. The device was installed on the ceiling of a raw basement directly below the kitchen faucet. I decided not to install it under the sink. Whenever I encountered poor water pressure, I would use a compressor and increase the pressure in the tank. I didn't measure the pressure, but added it little by little until the water came out easily from the faucet. I highly recommend this device, we use it every day and the water tastes great.
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