Hydronix Water Technology, Rancho Cucamonga CA

We had a local plumber install a full home reverse osmosis system for us. It worked well for around 6 months then had one problem after another. The local plumber has gone out of business. Now our $20000 water treatment system does not work at all and the company when contacted says they cannot help us with any aspect of the product that was sold. What kind of company sells a product but does not provide any guidance or support for what they sell? Stay well away from any Hydronix systems.