RO systems & flow restrictors

[Doug]

So, we have the flow restrictor think worked out. However the unit cant seem to make much water. Very slow. Yesterday he said it took 1.5hr. to make a liter, then when he tried to measure 2 liters, it was still running 5 hrs. later.

Pressure bladder from his well runs at 40psi which seems not bad. Wondering if the very cold well water is the main culprit, even though it passes through the softener first. Also wondering if the ro 3g holding tank pressure bladder has to much air in it, that would not let it fill correctly? Unfortunately his current air pressure measuring devices dont read below 10 psi.