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The last 7 posts

Monday, August 19th 2013, 10:49am

by Wet_Boots

If your water supply is as you described, then you can have a 4 gpm head in each corner, and the heads can surely spray at least 36 feet, and get you your coverage. You don't need 8 gpm heads in each corner (but it wouldn't be a bad idea if the dimensions were a couple of feet larger.

If there is a strong steady breeze at all times, then your coverage is affected. I'm assuming you can water in calmer conditions.

Monday, August 19th 2013, 9:25am

by janda.m


ok...just want to ask because I was some tutorials they said that there has to be head to head coverage and other says that there can be only 4 heads in the final solution is to put 4 pgp ultras (or pgj´s) in the corners and make two section...I have other questions but i will make new topic...thx a lot

Monday, August 19th 2013, 7:11am

by Wet_Boots

There isn't much to be gained by using more than 4 heads in your configuration, even though the space isn't a perfect square. As long as one head is overlapped by one other head, the coverage will not lack. The fact that you don't want a head in the center of the space, is an important reason to go with the 4 corner heads, so that their strong spray will get adequate coverage to the center area.

If there wasn't good pressure, then your layout would be done with nine heads, including a head in the center.


Systems in real life don't work exactly like the drawings show the coverage. Rotor heads spray further than drawn, so that wind drift doesn't cost you coverage. Add 2-3 feet of radius to the corner heads, and you are closer to real life.

Monday, August 19th 2013, 4:35am

by janda.m


I just want to know if it will be enough to put 4 pgp´s or pgj´s in the corner and maybe other 2 on the wide side...I dont care about pressure issues because I think it will be garden is not so large...

should it be like this? are sprinklers

Sunday, August 18th 2013, 1:52pm

by mrfixit

Hi Janda, I fixed your links so they're clickable now.

If you decide to go with one in each corner maybe during the installation you should add tees and cap them off where you might want a sprinkler later just in case.

Sunday, August 18th 2013, 8:03am

by Wet_Boots

Do the job with 4 PGP Ultras in the corners, and forget the rest. Since 5 bars is over 70 psi, you can easily get 40+ feet from those heads.

Sunday, August 18th 2013, 7:05am

by janda.m

help with design

hi...whats the better sprinkler spacing? first zone is about 36ft long and 42ft design is in the pressure is 5bars and 16gpm..i want to place 4 90 degree hunter pgj with distance 32ft and on the side two with distance 20ft...should I place also on the other side two with 16ft or is it OK?..i want to avoid to place one in the middle of second desing is the same but with 6 pgj´s with distance 20ft and 2 with 16 feet...and what sprinkler is better in this case?..pgj or pgp ultra?...thx

1st picture....