Are you saying that modern ROs are using pig bladders? Or are you referring to the French scientist that discovered the process in 1748 long before the invention of toilet paper. But of course, all in jest, right? Whew, you had me going there for a moment.
I am not I get your understanding between total production per day and actual storage capacity.
I am not familiar with any modern RO that continuously dribbles to the drain as automatic shut-offs are standard even with the el cheapo models. So the "windshield wiper effect" ceases when the tank is full. The contaminants in the water are given time to rest along side the membrane and a deterioration process can begin. That's why most manufacturers give a maximum one-year warranty on the membrane.
I am not familiar with any home unit that holds 4 gallons. You can purchase upgrades of, say, a 7-gallon tank that can hold four gallons of draw-down water depending on the air pressure you set. Good luck getting that under the sink! [:-}
Yea, Andy it was a joke! Thank goodness for a few advances in synthetics since the 1748 experiment so the synthetics were available for scientists developing the technology for the NASA Moon Missions. Did you have to google it? That RO water tastes better already!
Those numbers came from the Watts page for that unit...
Production of 50 GPD i would guess is a maximum capacity at the highest recommended pressure into a unrestricted container.
The storage tank they supply with the unit they say has that capacity.
So, 50 gallons per day maximum capacity into a storage tank of that size gives you what for capacity? Only whats available in the tank at the given time of use... Whats that? Who knows?
As for the continous dribble down the drain with RO it takes a lot of "Dirty" water to make "Clean" water as the membrane is almost continiously washed while it is filtering.
Scuuze me while I go get a good tall glass of OMG Horrors... Tap Water