Grow More® Mendocino Producer's Choice Purge — 2.5 gal

Salt-Binding Flush Formula Built for a Cleaner Finish Than Plain Water Alone

Plain water dilutes surface salts but does little for mineral deposits embedded deep in substrate pores, and those residues raise media EC and interfere with late-stage nutrient uptake right when it matters most. Grow More Mendocino Producer's Choice Purge uses chelating chemistry to actively bind and mobilize accumulated salt deposits so they flush out with a standard irrigation pass, rather than just sitting diluted in the media.

Used in the final one to two weeks of a crop cycle, Purge clears fertilizer residue ahead of harvest, and the 2.5 gallon format supplies enough concentrate for full run-off flushing across mid-to-large indoor operations.

Key Features & Benefits

• Salt Binding and Mobilization: Chelates accumulated mineral salt deposits from growing media and root surfaces, letting them flush out with standard irrigation.
• Improves Late-Cycle Nutrient Uptake: Lowering media EC restores normal osmotic conditions, helping plants draw in water and remaining nutrients more efficiently.
• Pre-Harvest Clearing: Applied in the final days of a grow cycle to remove fertilizer residues and support a cleaner finished harvest.
• Compatible With All Growing Media: Effective in soil, coco coir, rockwool, and hydroponic systems, flushing reservoirs and media alike with one product.
• 2.5 gal Format: Provides sufficient volume for one or more full-volume flush cycles in mid-to-large growing operations.

Who Should Use This

Indoor cultivators, commercial greenhouse operators, and hydroponic growers running complete nutrient programs who want to manage salt accumulation systematically are the direct fit, particularly in the final week or two before harvest or whenever media EC reads noticeably higher than solution EC.

About Grow More Inc.

Grow More Inc., in business since 1918 as National Chemical Company in Hollywood, California and now headquartered in Gardena, California, positions Purge as the flush component of its Mendocino Producer's Choice system.

Frequently Asked Questions

When should I use Purge during my grow cycle?

Purge is most commonly used in the final 7 to 14 days before harvest to clear accumulated nutrient salts and reduce media EC. It can also be used mid-cycle to address salt lockout when media EC reads significantly higher than solution EC.

How does Purge differ from plain water flushing?

Plain water dilutes surface salts but has limited effect on mineral deposits embedded within substrate particles. Purge uses chelating chemistry to actively bind and suspend those deposits, making them far more soluble and easier to remove with a standard irrigation flush.

Will Purge stress my plants if used mid-cycle?

Used at the recommended rate, Purge is formulated to be plant-safe and address salt accumulation rather than strip nutrients from actively growing roots. Always follow the label rate and resume regular feeding once the flush cycle is complete.

Can I use Purge in a recirculating hydroponic system?

Yes, drain and refill the reservoir with a Purge solution and circulate for the recommended time before a complete drain and fresh nutrient refill. This clears accumulated salts from both the reservoir walls and the system tubing.