Here is another question for the RO/DI crowd. Can your water pressure be too high? Just noticed on my Kent instructions that 85 psi is "Ideal". I have GREAT water pressure and the guage on my RO/DI unit reads 120+ :o I cut back the valve feeding the unit to drop it to 85 psi, and my output TDS dropped Since I have been running with 120+ psi, have I damaged the membrane? It is a 60gpd Kent membrane.