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This non return valve can get blocked over time with debris, if it does it will stay in the open position allowing watering to run back into your ozonator. This will cause damage to the ozonator, in the most cases irrevocably, the sympton of which is your hot tub electrics tripping.
The converse of this is it stays in the closed position, thus preventing your spa to draw in ozone.
A huge variety of hot tubs have these ozones fitted such as Aegean, Beechcoomber, Dimension 1, Emerald Spa, Hotspring, Hydrospa, Hydropool, LA Spas, Leisure Bay, Leisurerite, Marquis, Master Spa, QCA, Sapphire Spas, Sierra Spas, Signature, Southwest Spas, Spaform, Sunbelt, Sundance, Sunrise amongst others
This part is very easy to fit.
The converse of this is it stays in the closed position, thus preventing your spa to draw in ozone.
A huge variety of hot tubs have these ozones fitted such as Aegean, Beechcoomber, Dimension 1, Emerald Spa, Hotspring, Hydrospa, Hydropool, LA Spas, Leisure Bay, Leisurerite, Marquis, Master Spa, QCA, Sapphire Spas, Sierra Spas, Signature, Southwest Spas, Spaform, Sunbelt, Sundance, Sunrise amongst others
This part is very easy to fit.