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Turf water-management buying guide

Underhill Wetting Agent Guide

Compare Underhill liquid soil surfactants, wetting-agent pellets, salt-remediation pellets and PelletPro applicators for golf greens, tees, fairways, roughs, sports turf and other professionally maintained turf.

Fast answer: Choose Tournament-Ready for premium moisture management, Medalist for economical season-long programs, H2O Maximizer where water retention is the priority, Tournament-Ready Pellets for localized dry spots, Plus with Actosol when you also want humic/fulvic acids and micronutrients, and Salt Buster for salt or sodium accumulation.
Turf professional applying a wetting agent while hand watering a golf green
Choose by turf problem

Which Underhill wetting agent is right for you?

Select the result you are trying to achieve. The guide will highlight a strong starting point.

What is your main concern?

This selector is a buying aid. Confirm the final choice and application with the current product label, site conditions and your turf-management program.

Recommendation: Select your primary concern above to see a suggested starting point.
Side-by-side comparison

Underhill wetting agent comparison chart

Use this table to narrow the lineup by problem, format, placement and manufacturer application guidance.

Comparison of Underhill wetting agents sold by Par West Turf
Product Best fit Format Typical placement Manufacturer guidance Shop
Tournament-Ready Premium preventative and curative moisture-management program; localized dry spot and repellent soil Liquid nonionic soil surfactant Greens and highly maintained turf 8 oz per 1,000 sq ft in month one; 4 oz per 1,000 sq ft monthly thereafter View product
Medalist Lower-cost, scheduled water-management programs Liquid nonionic soil surfactant blend Approaches, tees, fairways and roughs 16–24 oz per acre monthly View product
H2O Maximizer Water infiltration plus improved soil water-holding capacity Liquid surfactant/polymer resin blend Dry soils, bunker facings, new sod/seeding, fairways and roughs 16–24 oz per acre monthly View product
Tournament-Ready Pellets Curative spot treatment of localized dry spots during hand watering Solid dissolvable pellet Greens and small high-stress turf areas 2–4 minutes per 1,000 sq ft View product
Tournament-Ready Plus with Actosol Localized dry spot treatment with added humic/fulvic acids and micronutrients Solid dissolvable pellet Highly maintained turf with poor moisture holding or rooting concerns 4–6 minutes per 1,000 sq ft View product
Salt Buster Pellets Spot treatment where salts and sodium are accumulating Solid pellet with penetrant and calcium Salt-affected localized areas Follow the current label and site-specific leaching plan View product
Important: Rates above summarize Underhill’s published general guidance. Always read and follow the current product label and SDS. Soil texture, organic matter, thatch, water quality, weather, turf species and existing irrigation practices can change product selection and application strategy.
Product details

Shop Underhill wetting agents by application

Each option below links directly to the corresponding Par West Turf product page.

Premium liquid program Underhill Tournament-Ready liquid soil surfactant jug

Tournament-Ready Liquid

A premium nonionic soil surfactant designed for rapid wetting of water-repellent soils, more uniform moisture and comprehensive preventative or curative turf water management.

Best for
Greens and highly maintained turf
Format
2.5-gallon jugs, case of two
Guidance
8 oz/1,000 sq ft first month; 4 oz monthly thereafter
Economical liquid program Underhill Medalist liquid soil surfactant jug

Medalist

A value-focused nonionic soil surfactant blend for scheduled, season-long water-management programs across larger turf areas.

Best for
Approaches, tees, fairways and roughs
Format
2.5-gallon jugs, case of two
Guidance
16–24 oz per acre monthly
Water-retention focus Underhill H2O Maximizer liquid surfactant and polymer resin blend jug

H2O Maximizer Liquid

A nonionic surfactant and polymer resin blend that combines initial wetting action with enhanced water retention in the soil.

Best for
Dry soils, bunker facings, new sod/seeding and moisture-stressed areas
Format
2.5-gallon jugs, case of two
Guidance
16–24 oz per acre monthly
Localized dry spots Underhill Tournament-Ready wetting agent pellets and case

Tournament-Ready Pellets

The Tournament-Ready formula in a solid pellet for metered hand-watering applications and supplemental treatment of small, stressed areas.

Best for
Localized dry spot on greens and small turf areas
Format
Single pellet or case quantities; case contains 16 pellets
Guidance
2–4 minutes per 1,000 sq ft
Added nutrient benefits Underhill Tournament-Ready Plus with Actosol wetting agent pellet containers

Tournament-Ready Plus with Actosol

A solid wetting-agent pellet combining the Tournament-Ready formula with humic and fulvic acids plus calcium, iron and other micronutrient benefits.

Best for
Localized dry spots where moisture management and rooting support are desired
Format
Single pellet or case quantities; case contains 16 pellets
Guidance
4–6 minutes per 1,000 sq ft
Salt and sodium remediation Underhill Tournament-Ready Plus with Actosol wetting agent pellet containers

Salt Buster Pellets

A penetrant pellet with added calcium, intended to help drive water through the soil for leaching where salts and sodium are accumulating.

Best for
Salt-affected localized areas and sodium-remediation programs
Format
Case of 16 pellets
Guidance
Follow current label and a site-specific leaching plan
Underhill PelletPro inline applicator connected to a hose while a turf professional hand waters
Pellet application equipment

Use the right PelletPro applicator

Underhill’s PelletPro system rotates solid wetting-agent tablets for even dissolution. Choose the handheld gun for an integrated watering setup or the in-line model to move applicator weight away from the operator.

PelletPro Applicator Gun

Heavy-duty handheld assembly with high-flow valve and nozzle options. Underhill publishes a flow capability of 35+ GPM, depending on the model and water supply.

View applicator gun →

PelletPro In-Line Applicator

Connects directly to the water source so the operator carries less weight. The Par West model has a 3/4-inch female hose-thread inlet and 3/4-inch male hose-thread outlet.

View in-line applicator →
Shop wetting agents and applicators
Helpful Tips

How turf wetting agents work

Wetting agents—also called soil surfactants—help water spread, infiltrate or remain available in soils that do not wet uniformly.

1

Identify the moisture problem

Determine whether the primary issue is water repellency, localized dry spot, poor water-holding capacity, excessive surface moisture, salt accumulation or uneven irrigation coverage.

2

Match formulation to the goal

Use a liquid program for broad preventative coverage, pellets for targeted hand-watering treatment, a polymer blend for added retention, or Salt Buster for salt/sodium-focused leaching support.

3

Calibrate and apply consistently

Follow the label rate, verify spray or hose output, distribute product uniformly and document the treated area, date, weather, irrigation and soil-moisture response.

4

Follow label watering instructions

Watering-in requirements differ by formulation and objective. Follow the current product label rather than relying on a universal rule.

5

Measure the result

Track volumetric water content, visual turf response, hand-watering labor, irrigation runtime, dry-spot recurrence and salinity indicators where relevant.

6

Adjust the program—not just the rate

Wetting agents do not correct poor irrigation distribution, compaction, excessive thatch, drainage failures or unsuitable water quality by themselves. Address the underlying cause too.

Localized dry spotsIrregular stressed patches that resist rewetting even after irrigation.
Water beading or runoffWater sits on the surface or moves laterally instead of entering the root zone.
Rapid dryingSand-based or exposed areas lose plant-available water faster than surrounding turf.
Salt accumulationWater quality, evaporation or insufficient leaching contributes to elevated salts or sodium.
Frequently asked questions

Underhill wetting agent FAQs

Direct answers to common product-selection and application questions.

What is a turf wetting agent?

A turf wetting agent is a soil surfactant that changes how water interacts with soil. Depending on the formulation, it may improve infiltration, reduce water repellency, distribute moisture more uniformly or increase water retention.

Which Underhill wetting agent is best for localized dry spot?

Tournament-Ready liquid is designed for comprehensive preventative and curative moisture management. Tournament-Ready Pellets are a convenient option for targeted, curative spot treatment while hand watering. Tournament-Ready Plus with Actosol is the pellet option when added humic/fulvic acids and micronutrients are also desired.

What is the difference between Tournament-Ready and Medalist?

Tournament-Ready is Underhill’s premium liquid soil-surfactant program and is commonly positioned for greens and highly maintained turf. Medalist is the more economical liquid option for scheduled programs over approaches, tees, fairways and roughs.

When should I choose H2O Maximizer?

Choose H2O Maximizer when both infiltration and water retention are priorities. Its formulation combines a soil surfactant with a polymer resin intended to adsorb to soil particles and increase water-holding capacity.

Should I use a liquid wetting agent or pellets?

Liquid wetting agents are usually better suited to planned, broad-area programs applied by sprayer or injection. Pellets are useful for supplemental, targeted treatment during hand watering. Many turf programs use both: liquid for baseline coverage and pellets for isolated problem areas.

Do Underhill wetting-agent pellets require a PelletPro applicator?

Underhill positions PelletPro as the application system for its solid wetting-agent tablets. The applicator rotates the pellet to support more even dissolution. Confirm compatibility, fittings and flow requirements before ordering.

What is the difference between the PelletPro gun and in-line applicator?

The applicator gun combines the pellet chamber, valve and nozzle in a handheld assembly. The in-line applicator connects closer to the water source, reducing the weight carried by the person holding the hose and nozzle.

What are Salt Buster Pellets used for?

Salt Buster Pellets are intended for localized areas where salts and sodium are accumulating. The product is described as a penetrant that helps move water through soil for leaching and includes calcium for sodium-remediation support. Use it as part of a site-specific water-quality and leaching plan.

Can a wetting agent fix poor irrigation coverage?

No. A wetting agent can improve soil-water behavior, but it cannot correct low pressure, blocked nozzles, poor head spacing, incorrect arcs, wind drift or damaged irrigation components. Perform an irrigation audit when coverage is uneven.

How often should I apply an Underhill wetting agent?

Frequency depends on the product and objective. Underhill’s published guidance lists monthly programs for the three liquid products shown here, while pellet guidance is expressed as application time per 1,000 square feet. Always use the current label and adjust the overall program based on soil-moisture data and turf response.

Where can I find safety data sheets?

Review the current product label and safety data sheet before use. Par West maintains an SDS resource page, and Underhill also publishes product resources on its official website.

Still deciding between two products?

Tell Par West about the turf area, soil profile, irrigation method, water quality, symptoms and treatment goal. A product specialist can help narrow the formulation and applicator configuration.

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