I have a sprinkler system drawing off of a pond using a 2" pipe, both in and out suppling the manifold and it works just fine. Because it appears to be causing the pond to get too low during the dry season, I would like to draw off an existing well that has a 1 1/2" incoming pipe. When I piped the well pump (1 1/2") to the 2" sprinkler supply, the pressure isn't enough, (varying between 20 psi to 30 psi). How do I get more pressure? The pressure tank reaches the 30-psi range. Is it possible to increase the pressure above the 30 psi? Do I need to have a well drilled with a 2" pipe? Thank you anybody for your input.