Central Coast Garden pH Up Solution - 1 Gallon - 35% Potassium Hydroxide - Maximum Strength

Maximum-Strength KOH for Large-Volume pH Correction, 1 Gallon

Standard-strength pH Up products become impractical once a reservoir holds hundreds or thousands of gallons, since raising pH a fraction of a point can require large volumes of product and equally large storage space. Central Coast Garden pH Up Solution is formulated at 35% potassium hydroxide, one of the more concentrated pH-raising products available, so a small amount adjusts even large reservoirs efficiently.

This 1-gallon size is built for commercial reservoirs and large-scale hydroponic operations rather than small personal systems, where the high concentration and small per-adjustment volume matter most.

Key Features & Benefits

• 35% KOH maximum-strength formula — requires far less product per pH point of adjustment than standard-concentration pH Up solutions.
• Fast pH elevation — potassium hydroxide raises pH quickly and predictably in nutrient solutions and reservoir water.
• Commercial reservoir sizing — the 1-gallon size and high concentration suit large reservoirs, recirculating systems, and commercial-scale operations.
• Prevents nutrient lockout — keeping pH in the 5.5-6.5 range keeps nutrients bioavailable, since pH drift outside that range causes lockout and deficiencies.
• Lower cost-per-use — the higher concentration means significantly less volume needed per adjustment than standard-strength products.

Who Should Use This

Commercial greenhouse operators, large-scale hydroponic facilities, and CEA growers managing high-volume nutrient reservoirs that need frequent, precise pH correction are the direct fit for this 35% KOH formula.

About Central Coast Garden Products

Central Coast Garden Products, founded in 2014 and based in Salinas, California, manufactures natural and minimum-risk pest control and pH adjustment products for commercial and home growers.

Frequently Asked Questions

Why is a 35% KOH concentration useful for commercial growers?

Commercial reservoirs can hold hundreds to thousands of gallons of nutrient solution, and standard-concentration pH adjusters would require large volumes per adjustment. At 35% KOH, a small amount raises the pH of even very large reservoirs, reducing product consumption and storage needs.

What is the ideal pH range for hydroponic nutrient solutions?

Most hydroponic crops perform well within a pH range of 5.5 to 6.5. Staying within that range keeps macro and micronutrients soluble and available for uptake, while pH outside it leads to nutrient lockout and visible deficiency symptoms.

How much should I add per adjustment?

Because of the high concentration, add this product in very small increments at a time in large reservoirs, then mix thoroughly and re-test before adding more. Overshooting pH is much harder to correct than undershooting it.

Can this be used in any hydroponic growing system?

Yes, this product suits all hydroponic and soilless growing systems, including NFT, DWC, ebb and flow, drip, and recirculating systems. Always dilute appropriately and never add it directly to a nutrient concentrate.