Disclaimer: This post was originally posted by Hero Member, movrshakr. this user is located in Zone 10a - near Cape Canaveral. This was originally posted on March 13,
2014.
What Donald said.
Thinking about his points, reducing the pressure on the transport lines would be an excellent move, but be sure to study the specs on the final regulator regarding required input pressure, and as Donald mentions, consider the line pressure drop--which may be small due to the low flow rate.
As for filter, it simply reduces problems with the AWS orifices--they are very sensitive to even small particulates clogging them. Yes, look for one OK with the static pressure--or find a regulator that regulates the pressure down even at no flow. They are rare and cost more than ones which do NOT lower the pressure in no-flow state. My guess is that best move would be a filter that can handle the input pressure.
This has been discussed in other threads in the forums, so you should be able to locate it--may take some reading time though.