I bought this sprayer via Amazon from Earth Mother and installed it. All fittings on it leaked. Not only did the two fittings which can be tightened leak, but the fittings which are built into the unit leak. The instructions said to tighten any fittings which leak. I tightened them all and the leaks continued. I uninstalled the unit and noticed very cheap fittings and seals.
The documentation states that a plumber is not necessary to install. I am not a licensed plumber, but I know my way around plumbing. I have installed sinks, faucets, home water filters, and baths with no problems.
I have requested a full refund. I’ll post Earth Mother’s response.