Researchers have developed a novel energy system comprising PVT panels, reverse osmosis, reverse electrodialysis, and proton ...
Yes, you can convert a traditional hot tub to a saltwater system by adding a salt chlorine generator. This conversion requires an upfront investment but simplifies future maintenance.
However, this comes with the significant caveat that salt chlorine generators are very expensive. For example, this Hayward W3AQ-TROL-RJ AquaTrol Salt Chlorination System on Amazon is nearly $1000.