I use UFA storage containers and i drilled a hole at the top of it for the float to go into. So then when the water level gets to where you want it the float closes the trickle of water and the pressure builds in the line and once the pressure gets to a certain point the RO unit shuts off. Then when the water level drops in the storage container the float drops opening the water trickle again. Hope this explains it.
My RO unit is always turned on has been for over 2 years but as soon as my storage container fills up each time it shuts the RO unit off automatically. Very handy thing never an over flow and i always have RO water ready.
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