Quote:
Originally Posted by Chateau_Nomad
I've had a home RO system for nearly 30 years. A true RO membrane has VERY slow throughput... how are they doing "on demand"? My current home system has a 2.5 gallon tank.
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I wondered about that too. But, the filters and RO element in the tankless systems are quite a bit larger than those in the regular under the sink RO systems. I’m thinking that’s how they achieve a higher on-demand flow. It also has an internal pump which increases flow rate.
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