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Refilling frog filter cartridges


Rstazenp

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Hello all,

I have a 2018 Caldera Vanto spa.  It uses the frog inline system with a bromine/mineral cartridge and a smartchlor cartridge.  But, man these things are pricey.  I found that 2000 flushes is the EXACT same ingredients as the smartchlor system, so I've been refilling that myself.

I'm wondering if there is an easier way to manage levels in this tub, or get rid of the online system all together?  I'm doing a change now, and I'm out of the mineral/bromine cartridge.  Would I be able to just add slow dissolving bromine tablets to the cartridge?

This is my first hot tub, and I'm still trying to get use to adjusting water properly.

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