Replacement Sprinklers
#1
08-05-18, 05:51 PM
Replacement Sprinklers
I am trying to improve the sprinkler coverage on the lawn at my mom’s house. I have not been able to measure the flow rate or water pressure, but the coverage is poor.
She has five sprinklers per zone and the radius of the coverage is about 3 feet.
I am looking to replace her 2” Rainbird popups with a 3” popup and I’d like to switch to a style that maximizes coverage with low pressure.
Any recommendations on this?
She has five sprinklers per zone and the radius of the coverage is about 3 feet.
I am looking to replace her 2” Rainbird popups with a 3” popup and I’d like to switch to a style that maximizes coverage with low pressure.
Any recommendations on this?
#2
08-05-18, 07:41 PM
Group Moderator
Five sprinklers and only 3' of coverage ? Is that a mis-type ?
Measuring the water pressure is an important first step.
Measuring the water pressure is an important first step.
#3
08-06-18, 04:48 AM
Group Moderator
If the coverage is that bad I would be looking for a leak. I would also inspect any valves, regulators, check valves and suction breakers to see if they are restricting the flow of water to the irrigation system.
#4
08-06-18, 12:33 PM
I will try to measure the water pressure the next time I'm out there, but her water pressure is low throughout the house.
There are two separate manifolds (one for the back and one for the front) and all 7 zones can only supply enough pressure to max out 4 sprinklers. Any more than that, and the radius drops to about 3 feet.
This is an old house and it's a common problem in the neighborhood.
There are two separate manifolds (one for the back and one for the front) and all 7 zones can only supply enough pressure to max out 4 sprinklers. Any more than that, and the radius drops to about 3 feet.
This is an old house and it's a common problem in the neighborhood.
#5
08-06-18, 02:07 PM
Group Moderator
I don't think changing the heads are the answer.
Usually you need to reduce the quantity of heads to accommodate the low water pressure.
Usually you need to reduce the quantity of heads to accommodate the low water pressure.
#6
08-06-18, 02:37 PM
Group Moderator
Most home centers sell pressure gauges that screw onto a spigot. Then get a bucket of a known size (like 2 gallon or 5 gallon) and time how long it takes a spigot to fill the bucket. With those two numbers you'll have a good idea of what your'e working with.
