Tees a Sumi Soaker line off a 1 in PVC or poly mainline. Pick your tubing, your pipe and whether you want the built-in pressure regulator.
- Matches your tubing. R-Wide and Mark II versions. The fittings don't cross over, so pick the one that matches your kit.
- PVC or poly. Glue-on slip fittings for rigid 1 in PVC, or a push-on fitting for flexible 1 in poly with no clamps or tools.
- Regulator built in. Holds R-Wide at 30 PSI and Mark II at 12 PSI, whatever your mainline runs.
- Quick disconnect. A 1 in union lets you unhook a line at the bed without cutting into the mainline.
What's in the box
Everything to get from your mainline to the tubing: a 1 in tee that taps into the mainline (glue-on slip for PVC, push-on for poly), a valve to shut off each line, a 1 in union for quick disconnect, the pressure regulator on the regulator versions, and the threaded end that meets the Sumi Tube Starter Connector included with every kit.
Free shipping on orders over $25 in the Lower 48 · Most orders ship within 24 hours
How many lines can one mainline feed?
Every line on a zone draws water at the same time, so the mainline sets how many can run together. A 1 in mainline carries about 10 GPM in PVC and up to about 14 GPM in poly at a safe speed.
Need more lines at once? Use a bigger header, or water in zones.
| Line | Flow per line | Lines at once |
|---|---|---|
| R-Wide, 50 ft line | 6.4 GPM | 2 |
| R-Wide, 100 ft line | 12.7 GPM | 1 |
| Mark II, 50 ft line | 1.8 GPM | 5 |
| Mark II, 100 ft line | 3.6 GPM | 2 |
R-Wide or Mark II tubing?
Get the connector version that matches your tubing. Here's how the two differ.
R-Wide
Open-field workhorseLow, wide spray. One line down the center path covers eight 30 in beds.
- Spray width
- 33 ft
- Pressure
- 30 PSI rated · 15 PSI min
- Flow, 100 ft line
- 12.7 GPM
- On a garden hose
- Up to about 50 ft lines
you water open field beds, have good pressure and flow, and grow mostly low crops like greens, roots and alliums.
Mark II
Low-pressure specialistSteep 80° spray that throws up and over taller crops in a tighter footprint.
- Spray width
- 13 ft
- Pressure
- 12 PSI rated · 3 PSI min
- Flow, 100 ft line
- 3.6 GPM
- On a garden hose
- Any length, almost any hose
you grow in a greenhouse or high tunnel, have low pressure or limited flow, or water around taller crops.
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.
Goes with
-
R-Wide Kit
33 ft of spray from one line, for open field beds.
From $51.00Choose -
Mark II Kit
Steep, low-pressure spray for tunnels and taller crops.
From $46.00Choose -
Add-on Kit
For each extra run when you cut a roll.
From $14.50Choose -
Garden Hose Connector
For single lines run off a hose bib.
From $35.50Choose
Specs at a glance
- Fits
- R-Wide or Mark II tubing (choose your version)
- Mainline
- 1 in PVC (slip, glue-on) or 1 in poly (push-on)
- R-Wide regulator
- 30 PSI preset · needs at least 35 PSI coming in
- Mark II regulator
- 12 PSI preset · needs at least 17 PSI coming in
- Regulator flow range
- 2–20 GPM
- Quick disconnect
- 1 in union
Regulators: Senninger PMR-MF series.
Connector questions
Still not sure? Email hello@moderngrower.co or call 877-850-1555.
Do I need the regulator version?
For Mark II, almost always: it's rated at about 12 PSI. For R-Wide, you need it when your mainline runs above 30 PSI, which covers most town water at 40–60 PSI. Skip it if you've measured 15–30 PSI at the bed, or if you already have a regulator upstream.
PVC or poly?
Match your mainline. The PVC version uses slip fittings that you glue with PVC cement, best for permanent and greenhouse plumbing. The poly version pushes onto 1 in poly tubing with no glue, clamps or tools, handy if you move beds or break the system down each season.
How many lines can I run at once?
On a 1 in mainline, about one 100 ft R-Wide line or two 50 ft lines at a time, or two 100 ft Mark II lines. For bigger zones, use a larger header. The Mainline Calculator works it out for your setup.
Where does it go?
At the head of each bed, where the Sumi line meets your mainline. The Sumi end screws into the Tube Starter Connector that comes with every kit.
Mainline Connector or Garden Hose Connector?
Use the Mainline Connector for longer lines, several lines on one supply, or any 1 in PVC or poly system. For a single line off a hose bib, the Garden Hose Connector is simpler.
Main US source
Modern Grower is the main US source for Sumi Soaker (Sumisansui) tubing from Sumika Agritech.
Support from people who use it
Questions go to our team, with a direct line to the manufacturer. hello@moderngrower.co · 877-850-1555
Ships from the US
In stock, with most orders out within 24 hours. Free shipping over $25 in the Lower 48.