When it is hooked up to your rig and on city water and you are filling a large pot, filling the sink, taking a shower.........flow will be as much as can flow thru canister.
It works with full flow. Don't have to limit it or use it/let it stand/use it etc.
The resin reacts with the calcium/magnesium in the water instantaneously.
Have an On-The_go AND operated huge water treatment facility.
Draining for travel/storage.
Pick up a double female garden hose connector because the resins can get packed when canister is empty.
Hook up a hose to water supply then to canister 'outlet' with connector so you can backflush/fluff the resins....full flow for couple minutes.
Then place it in service.