Quote Originally Posted by beareef19
OK just did a test 3/4 gal at 13tds with 5gal waist in approx 40min at this rate I will never get the 75gpd that it is rated at any recomendations.
Barry
0.75 gallons in 40 minutes equates to about 24 gallons per day.

If you have a Filmtec membrane they should reach their rated capacity with feed water at 77 degrees F and 50 psi (with 250 ppm feed water). Other manufacturers require more pressure. Colder temperatures and lower pressure will decrease the production of permeate. This lack of production is also one of the symptoms of a bad membrane.

Russ @ BFS