Tom Stepanof - January 28, 2022

I could not find the product I needed for my Jacuzzi, go figure there is a shortage! But I posted a message to King Technologies (Frog) and they sent me 3 dealers that have their products within 1 day. Thank you!

Randall Paulson - March 30, 2023

I have a the smallest Jacuzzi J-315 and the chlorine and minerals are constantly low. However, the cartridges are never empty but I notice the little holes on the bottom seem clogged. The chlorine setting should be at 3, but I have to put it at 7. This system requires daily monitoring. It’s a new spa but I’m looking for an alternative system. @ease is not easy.

Anthony - January 29, 2023

The cartridges work well. They have a hard time recovering chlorine levels after use so I always drop a half-tbsp of chlorine in when we get out. I had similar problems as others keeping the chlorine levels 0.5-1 ppm until I started using non-chlorine shock 1-2 times a week. The cartridge (and most chlorine sources) will not be able to keep up with biofilm once it gets established—it’s probably too late if your water is green. I might’ve noticed that non-chlorine shock burns up the chlorine in the cartridge faster, but not sure. My biggest complaint is that these are not easily available. I can only find one or two sources to purchase them from. Please put these up on Amazon.

Susan - January 15, 2023

Like others I have a 375. Low chlorine level within a few days of replacing. Been occurring for several months now. Doesn’t last! Need to add chlorine and replace cartridges every 2 weeks. Had another hot tub and used floating system. That worked well! This system is horrible. Need to look into this and all same complaints!

Ed - September 8, 2022

Hello! I'm here because, like so many others, my J-385 water is turning green after just 3 days of inactivity. This system is a bit expensive, and I'm using traditional chemicals on top of it. Then, I worry about what will happen when I go away for two weeks. I see customer support is reaching out to others. I would appreciate the same. Thanks!