Athena Cleanse – 5 Gallon

Athena Cleanse is a hypochlorous acid-based irrigation system cleaner for hydroponic and soil growers. Made from salt via a proprietary electrochemical treatment process, it removes mineral scale from drip lines, reservoirs, and recirculating systems without disrupting your nutrient balance. The 5-gallon size is suited to commercial-scale grows and multi-site operations that run Cleanse as a regular part of their irrigation maintenance program.

Athena Cleanse – 5 Gallon Specifications

Key physical and usage parameters derived from the manufacturer canonical data and product documentation.

Specification	Value
Brand	Athena
Product Name	Athena Cleanse
Container Size	5 Gallon (18.9 L)
Shipping Weight	60 lb
Active Chemistry	Hypochlorous acid (HOCl)
Feedstock	Salt-derived via electrochemical process
Nutrient Content	Non-nutritive (does not add N-P-K)
TDS Contribution	Very low — does not significantly affect mineral balance
Toxicity	Non-toxic
Regular Use Dose Rate	2–5 mL per gallon
Severe Condition Dose Rate	5–10 mL per gallon

Why Choose Athena Cleanse – 5 Gallon

Mineral scale is one of the more persistent maintenance problems in recirculating hydroponics. Calcium, magnesium, and other mineral complexes with low solubility gradually coat emitter orifices, drip rings, reservoir walls, and tubing interiors. As buildup accumulates, flow rates drop, emitters clog unevenly, and previously soluble nutrients become locked into the scale matrix — no longer available to plants. Athena Cleanse addresses this at the chemistry level rather than by mechanical scrubbing or harsh chemical flushes.

Hypochlorous acid (HOCl) is the active compound. It is a mild oxidizing acid produced by running a salt solution through an electrochemical cell. The oxidative action breaks apart the mineral complexes that form scale, returning them to a soluble or suspended state that can be flushed from the system. Because HOCl is non-nutritive and contributes very little TDS, it can be introduced directly into an active nutrient reservoir without displacing the existing mineral profile.

The 5-gallon container makes Athena Cleanse practical for larger commercial operations. Mixing ratios are low enough that a single 5-gallon container yields a large volume of working solution — either run continuously at maintenance doses or applied at higher rates during a targeted descaling flush. Growers who run Cleanse on a scheduled maintenance basis report that drip emitters maintain more consistent flow rates over longer operating periods, reducing the frequency of manual emitter replacement or line cleaning.

• Hypochlorous acid chemistry: Oxidatively breaks down mineral scale rather than relying on chelation or physical flushing alone.
• Non-nutritive formula: Does not add nitrogen, phosphorus, potassium, or significant TDS — safe to run in an active nutrient reservoir.
• Low dose rates: 2–5 mL/gallon for regular maintenance; 5–10 mL/gallon for more severe scale conditions.
• Recirculating system compatible: Designed for RDWC, DWC, and other recirculating setups where mineral residue accumulates over multiple crop cycles.
• Commercial 5-gallon size: Reduces per-application cost and resupply frequency for high-volume production environments.

Best Uses for Athena Cleanse – 5 Gallon

Athena Cleanse fits most irrigation setups and growing styles, but it is particularly well-suited to the following situations:

• Recirculating deep water culture (RDWC) and DWC systems: Recirculating systems accumulate mineral residue on reservoir walls, net pots, air stones, and pump housings over time. Running Cleanse as part of a regular reservoir maintenance protocol keeps these surfaces cleaner and prevents scale from reducing dissolved oxygen transfer or pump performance.
• Drip irrigation systems with hard water inputs: Growers in hard-water areas or using well water with high calcium and magnesium content will see emitter clogging much faster than those using RO water. Regular Cleanse application at maintenance rates (2–5 mL/gallon) slows the accumulation of limescale inside drip orifices and poly tubing.
• End-of-cycle reservoir flushes: At crop changeover, increasing the rate to 5–10 mL/gallon and running Cleanse through the system before replanting helps remove accumulated mineral deposits from a full growing cycle, starting the next crop with clean lines and hardware.
• Commercial greenhouse irrigation networks: Large commercial operations with extensive drip manifolds benefit from the 5-gallon volume. A scheduled Cleanse treatment program, applied at low maintenance rates, extends the service interval between physical line inspections and emitter replacements.
• Growing media descaling: Canonical documentation notes that Cleanse can help address severe mineral buildup in the growing media itself, breaking down low-solubility mineral complexes that cause nutrient lockout — a common cause of apparent deficiency symptoms even when nutrients are present in the reservoir.

Athena Cleanse vs Similar Irrigation Cleaning Products

Most growers who need to address irrigation scale have a few options: mechanical flushing with plain water or diluted acid solutions, enzyme-based products that target organic buildup, or oxidant-based cleaners like Athena Cleanse. Each approach has different tradeoffs in a production environment.

Dilute acid flushes (using citric acid or phosphoric acid) can dissolve calcium carbonate scale but typically require the system to be offline and fully drained, since high-concentration acid solutions are incompatible with an active nutrient reservoir. They also affect pH significantly during application. Athena Cleanse, formulated at a mild HOCl concentration, can be run at maintenance doses without taking the system fully offline, and contributes very little to TDS or pH drift.

Enzyme-based cleaners are primarily designed to break down organic matter — biofilm, dead root material, and organic residues — rather than inorganic mineral scale. If your primary issue is mineral buildup from calcium and magnesium, enzymes alone are unlikely to fully address it. A grower dealing with both organic buildup and mineral scale might use an enzyme product alongside Athena Cleanse at different points in the crop cycle. Products like PureCrop1 target biological residues and can complement a mineral-descaling program without overlap.

Compared to other HOCl-based products on the market, Athena Cleanse is positioned as part of the broader Athena nutrient system, which means it is formulated to be compatible with Athena’s base nutrient lines and has documented dose rates grounded in the company’s agronomic program. Growers already running Athena nutrients have a straightforward integration path.

Compatibility

Athena Cleanse is compatible with the full range of common hydroponic irrigation hardware and substrate types. The following notes are derived from the canonical product documentation:

• System types: Compatible with recirculating DWC, RDWC, drip-to-waste, ebb and flow, and NFT systems. Recirculating and DWC setups are specifically called out in manufacturer documentation as primary use cases.
• Nutrient system compatibility: Non-nutritive and very low TDS, so it does not conflict with mineral-based nutrient programs when used at recommended rates. Growers running Heavy 16 Roots or other concentrated nutrient supplements can introduce Cleanse without displacing the existing nutrient profile.
• Growing media: Can be used in systems running any common substrate — coco coir, rockwool, hydroton, perlite, or soil-based containers. The documentation notes specific applicability to growing media descaling for severe mineral buildup conditions.
• Hardware materials: Hypochlorous acid at the low concentrations used in Cleanse is generally compatible with polyethylene tubing, PVC fittings, polypropylene components, and stainless steel hardware. As with any cleaning product, avoid prolonged undiluted contact with elastomeric seals or rubber gaskets; always dilute before use.

Dosing Guidelines

Athena Cleanse dose rates vary by the severity of scale conditions and the type of system being treated. All rates are per gallon of water in the reservoir or flush tank.

Regular system maintenance (ongoing use):
Add 2–5 mL per gallon to the reservoir or irrigation water. This lower dose is appropriate for systems that are maintained with Cleanse routinely — keeping scale from building up rather than removing established deposits. At this rate, Cleanse can be run continuously without significantly affecting TDS or nutrient balance.

Severe scale conditions:
Increase the dose to 5–10 mL per gallon when addressing established mineral buildup, heavy scale in drip lines, or growing media with significant mineral lockout. This elevated rate is typically applied during a targeted cleaning cycle rather than continuously throughout a crop.

RDWC and recirculating systems:
For any recirculating or deep water culture system, Athena Cleanse is run to remove mineral residue and reduce scale accumulation on reservoir surfaces, pump components, and recirculating lines. The manufacturer specifically notes that Cleanse helps break down materials with lower solubility ratings — mineral complexes that are no longer available to plants and that contribute to nutrient deficiency symptoms. Running Cleanse regularly in these systems addresses both the hardware cleanliness problem and the nutrient availability problem simultaneously.

Measuring and mixing:
Use a calibrated syringe or measuring cup for accuracy, especially at the lower end of the dose range (2 mL/gallon). Athena Cleanse is added to the water before or alongside nutrient additions. Always shake or stir the concentrate before measuring.

How to Use Athena Cleanse in Your Irrigation System

1. Determine your current scale level. Inspect drip emitters, reservoir walls, and pump strainers. Light mineral deposits indicate maintenance rates are appropriate; heavy visible buildup suggests starting with the severe-condition rate (5–10 mL/gallon).
2. Measure the dose. Using a calibrated syringe or measuring cup, draw the appropriate volume of Athena Cleanse concentrate. For a 100-gallon reservoir at regular maintenance rates, this is 200–500 mL of concentrate.
3. Add to reservoir or flush tank. For ongoing maintenance, add directly to the active nutrient reservoir. For a targeted descaling flush, add to a clean tank of water without nutrients and circulate through the system.
4. Circulate thoroughly. Allow the Cleanse solution to run through all lines, emitters, and return paths for at least one full circulation cycle before plant watering commences. For drip systems, verify that all emitters are flowing before proceeding.
5. Monitor and adjust. Check drip emitter flow rates and reservoir cleanliness over successive waterings. If scale is still accumulating faster than desired, move toward the higher end of the dose range or increase treatment frequency.
6. End-of-cycle flush. At crop changeover, run Cleanse at 5–10 mL/gallon through the entire system before sterilizing and replanting. This removes accumulated mineral deposits from the completed crop cycle and prepares lines for the next run. For context on complementary additives that support root-zone health in new crop cycles, see Advanced Nutrients Tarantula, a beneficial microbial inoculant used at transplant.

Sources & Further Reading