Hi all. My ozonator on my 18 month old 2013 hot spring grandee is not producing as many bubbles as it was when new. Is it time for a replacement or does it just need a cleaning? I saw on YouTube, that you can disconnect the hose and let white vinegar then run thru that hose to remove scale buildup.. I also heard that they usually have a 1 to 2 year life expectancy...