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New Member


Wednesday, May 20th 2015, 12:31pm

Sprinkler line layout question

I've read a million times that the sprinkler line should feed a lateral line so it looks like the letter "T" or maybe an "H" so all of the heads maintain the same pressure/flow. Conversely,a bad layout is having all of the heads in a row coming from the valves with no t's because the first head will have more pressure/flow than the last.
My question is if you ran a straight line (or curves) from the valves in say 1" poly and each head was connected by a swing joint and short length of 1/2 funny pipe, wouldn't that give equal pressure? Assuming you have enough pressure and GPM for the zone. It seems like the branches in funny pipe are doing the same thing by limiting the flow and giving the line time to recover for the next etc.
so, is a straight shot still a bad idea?


Supreme Member

Posts: 5,287

Location: Metro NYC


Wednesday, May 20th 2015, 2:54pm

it all comes down to pressure loss in lines and fittings - if your long run of poly doesn't lose too much pressure from beginning to end, then you are good to go

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