Sumi Soaker Β· Overhead irrigation for market gardens

Your beds are rectangles. So is the spray.

Sumi Soaker (Sumisansui) lays down a wide, even rectangle of spray from one line β€” gentle enough for fresh seedings, quick to move between blocks. Made in Japan by Sumika Agritech.

4.9 out of 5 from 63 Sumi Soaker reviews
  • Free shipping over $25 in the Lower 48
  • Most orders ship within 24 hours
  • Main US source for Sumi Soaker
Sumi Soaker Riser Clamp - Modern Grower One line Β· up to 33 ft of coverage
  • 33 ft Spray width from a single line
  • 8 beds 30 in beds watered from one line down the path
  • 0.47 in/hr Gentle, rain-like application rate
  • 15–30 PSI Runs on most farm and residential supplies

R-Wide at rated pressure. Source: Sumika Agritech manufacturer specifications.

Pick your tubing

R-Wide or Mark II?

It comes down to three things: your water pressure, how much flow your source delivers, and where you grow. Parts come in a version for each tubing and don't cross over.

R-Wide

Open-field workhorse

Low, wide spray. One line down the center path covers eight 30 in beds.

Spray width
33 ft
Pressure
30 PSI rated Β· 15 PSI min
Flow, 100 ft line
12.7 GPM
On a garden hose
Up to about 50 ft lines
Choose it if:

you water open field beds, have good pressure and flow, and grow mostly low crops like greens, roots and alliums.

Mark II

Low-pressure specialist

Steep 80Β° spray that throws up and over taller crops in a tighter footprint.

Spray width
13 ft
Pressure
12 PSI rated Β· 3 PSI min
Flow, 100 ft line
3.6 GPM
On a garden hose
Any length, almost any hose
Choose it if:

you grow in a greenhouse or high tunnel, have low pressure or limited flow, or water around taller crops.

Not sure what your water can handle?

Time how long your hose takes to fill a 5-gallon bucket. The Water Supply Check turns that into a recommendation; the System Planner sizes your tubing and fittings.

Watch and listen

A profitable farm business, not just a farm

Check out this video and others on our YouTube channel, where we talk about building a profitable farm business, not just a farm.

$500,000 From 1 Acre of Lettuce (75% Profit Margins)

More on our YouTube channel β†’
Farm Small Farm Smart
The podcast

Farm Small Farm Smart

Real conversations with growers about the business side of small-scale farming: what they grow, what they charge, and what actually makes money.

The Modern Grower newsletter

NEED HELP

hello@moderngrower.co
877.850.1555 (930AM-400PM PST | M-F)