11 Apparatus and devices for use with water in domestic and commercial applications, namely; bathtubs, bathtub enclosures, faucets, gauges, faucets, shower heads, showers, sinks, swimming pool chlorinating units, swimming pool water cleaning and filtering units, water tanks, plumbing fittings, namely, valves, strainers, cocks, traps; swimming pool water level adjustment systems comprising water gauges, manual and automatic control valves, pipes, fittings and hoses therefor; waste water purification units; water conditioning units; water distillation units; water filtering units; water purification units; water softening units