Thank you for sharing this...I think I will have to have my son help me try this, We currently are using one of those under the sink waterfilter housings but having issues with the sediment cartriges plugging up to fast and not knowing how to resolve that issue. Also Im using a submursable pond pump inside the tank and pumping thru hose to the filter housing. Unless you have a suggestion that would resolve my issue I will get my sons help and try to duplicate your idea 
