I got a lot of help here
Irrigation tutorials; sprinkler & drip systems, design, install and repair.
but eaven that confuses issues a bit because it goes overboard
the first thing you should do is get that pressure gague at home depot
its in the plumbing section by the sprinkler supplies. Costs $10 but if you hold on to receipt you can always return it.
than try the bucket test.
--- off that site ---
Get a 5-gallon bucket. Old paint buckets work great. Since most 5-gallon buckets actually hold more than 5 gallons of water, you will need to calibrate the bucket as follows: Find an accurate measuring container, and measure out 5 gallons of water into your bucket. Then mark the water level on the side of the bucket with a marking pen so you can easily see it. The test is simple. Put the bucket under your water outlet pipe and time how long it takes to fill the bucket to 5 gallons. The formula for calculating the flow in GPM is: 300 divided by the seconds it takes to fill a 5 gallon bucket = GPM.
I had 80 psi and came out to like 30gpm which are like very good conditions
the lower the numbers the harder your job will be
the work was rather phisical
the planing and expertiese part weren't at all dificult
there is a website out there that will plan your pipes for you if you draw them an acurate plan of your yard and send it to them.
but I had some experience in taping into coper supply and sweating coper pipes which you will almost certinly have to do
I live in holtsville if you live close enough id be willing to come over and help a bit in any way I can
talk to the plumbing gus at home depot they know more than I
if you come across a dumbass got to another onethey aren't that far apart
or on a different day they were very helpful to me
how much would you be wiling to spend