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  • Sumi Soaker IrrigationBest seller
    Sumi Soaker Irrigation Shop all Sumi Soaker β†’
    Start here
    • Which Sumi is right for you?Compare R-Wide and Mark II side by side.
    • Water Supply CheckMake sure your water can run the system.
    • System PlannerSize tubing and fittings for your beds.
    Shop
    • R-Wide Kit
    • Mark II Kit
    • Water Connectors
    • Add-on Kits & Parts
    • Risers
    • Tubing Only
    • Shop all Sumi Soaker
    Technical guides
    • How Sumi Soaker works
    • R-Wide pressure & flow
    • Mark II pressure & flow
    • Mainline sizing
    • Mainline calculatorSee how many lines your pipe can run.
    R-Wide Kit
    R-Wide KitFrom $51Shop R-Wide
  • Paperpot Transplanting
    Paperpot Transplanting Shop all Paperpot β†’
    Transplanter
    • The Original Paperpot Transplanter
    • Pro-Series Starter Kit
    • Spreader Frame
    • Spreader Bars
    • Paperpot Opening Kit
    Paper chain pots
    • 2" spacing
    • 4" spacing
    • 6" spacing
    • Extra Deep
    Trays & prep
    • Germination Trays
    • Solid Bottom Trays
    • Dibble Board for Paperpot
    • Kwik Klik Drop Seeder for Paperpot
    • Shop all Paperpot
    Pro-Series Starter Kit
    Pro-Series Starter Kit$2,235Shop the kit
  • Seeders
    Seeders Shop all β†’
    Kwik Klik drop seeders
    • Kwik Klik Slide Drop Seeder
    • Add-on Plate Package
    • Replacement Screws (Legacy)
    Jang seeders
    • JP1 Jang Seeder
    • JP5 Jang Seeder
    • Seed Rollers
    • Jang parts
    Nursery tools
    • Dibble Board for Cell Trays
    • Nursery Trays
  • Crop Protection
    Crop Protection Shop all β†’
    Fabrics
    • Premium Shade Cloth
    • InsectaNet
    • Germination Netting
    • Clear Poly
    Low tunnels & anchoring
    • Kwik Hoops Nano
    • U-Stakes
    • Stainless Landscape Staples
  • Microgreens
    Microgreens Shop all β†’
    • Sproutlet Grow Kit (3-pack)
    • Sproutlet Refill Kit
    • 1020 Microgreen Trays
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Sumisansui Sumi Soaker Irrigation Systems

Sumi Soaker R-Wide vs. Mark II: Which Model to Choose - Modern Grower

Sumi Soaker R-Wide vs. Mark II: Which Model to Choose

Choosing between the Sumi Soaker R-Wide and Mark II comes down to three things: your water pressure, your water volume, and where you grow. This guide breaks down how the...

How to Size a Mainline for Sumi Soaker Irrigation β€” Pipe Sizing Guide - Modern Grower

How to Size a Mainline for Sumi Soaker Irrigation β€” Pipe Sizing Guide

Your Sumi Soaker tubing needs a mainline to carry water from the source to each bed β€” and the pipe diameter you choose determines how many lines you can run...

Sumi Soaker Mark II Water Pressure & Flow Guide - Modern Grower

Sumi Soaker Mark II Water Pressure & Flow Guide

Sumi Mark II is designed for growers whose water supply can't deliver high pressure or high volume. Operating across a manufacturer-confirmed range of 2.9 to 11.6 PSI with a flow...

Sumi Soaker R-Wide Water Pressure & Flow Guide - Modern Grower

Sumi Soaker R-Wide Water Pressure & Flow Guide

Sumi R-Wide mist irrigation tubing needs two things from your water supply: pressure to create the spray pattern and flow to sustain it across the full bed length. This guide...

Sumi Soaker Irrigation: What It Is and How It Works - Modern Grower

Sumi Soaker Irrigation: What It Is and How It Works

The Sumi Soaker is a Japanese-engineered irrigation system that delivers water in a rectangular pattern instead of circles, matching the shape of market garden bed blocks. This post covers how...

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