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Started an irrigation project.

There are 4 points in this irrigation system; A, B, C and D.

The main water line to the house is 1" diameter pipe. (Point A)

The distance from Point A to Point B is approximately 30 feet.

Here at Point B the pipe size is reduced down to 3/4" pipe.

The distance from Point B to Point C is approximately 50 feet of 3/4" pipe.

From Point C I have a straight flat 50 foot run of pipe to Point D which will then feed 9 sprinkler heads.

Here is my question:

Will my water line pressure slightly increase or remain somewhat unchanged by dropping down to 1/2" pipe at and after Point D?

I am concerned of pressure loss due to the long distance from Point B to Point D.

Notes: I will be conducting a pressure test at Point C tomorrow 5/24/21 and updating this thread.

There are 4 points in this irrigation system; A, B, C and D.

The main water line to the house is 1" diameter pipe. (Point A)

The distance from Point A to Point B is approximately 30 feet.

Here at Point B the pipe size is reduced down to 3/4" pipe.

The distance from Point B to Point C is approximately 50 feet of 3/4" pipe.

From Point C I have a straight flat 50 foot run of pipe to Point D which will then feed 9 sprinkler heads.

Here is my question:

Will my water line pressure slightly increase or remain somewhat unchanged by dropping down to 1/2" pipe at and after Point D?

I am concerned of pressure loss due to the long distance from Point B to Point D.

Notes: I will be conducting a pressure test at Point C tomorrow 5/24/21 and updating this thread.

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