Artificial grass in Glendale depends entirely on what lies underneath it. The turf itself is only the visible layer; the infill, base preparation, and drainage system determine whether your yard will stay level and odor-free through monsoon season, whether puddles will form after a storm, and whether the installation will hold up for years. This guide walks you through the materials and techniques that separate a durable, well-draining installation from one that fails within months. Whether you are replacing a bermuda lawn burned out by the heat, installing a dog run, or preparing a patio or pool surround, understanding infill, base prep, and drainage will help you ask the right questions and verify the work before it is finished.
Glendale's flat terrain, hard desert caliche soil, intense summer heat, and occasional monsoon downpours create specific challenges. A base that is not properly excavated and compacted will settle unevenly; a turf with too little infill will show wear and odor quickly; and a drainage system that does not account for the local soil will trap water and cost you thousands in remediation. This guide covers the materials and methods that work in the West Valley, and the specifications you should demand in writing from any turf installer, including us.
Turf Infill Options: Silica, Coated Sand, Zeolite and Envirofill
Infill is the granular material spread across the turf after installation. It serves multiple purposes: it props up the synthetic fibres so they stand upright and feel natural underfoot, it protects the turf backing from UV damage, it adds weight to keep the turf in place, and it helps the system drain. The most common infill is silica sand, a basic mineral ballast that is affordable and effective. Silica sand is angular and relatively coarse; it works well for general residential and commercial applications, though some homeowners prefer a softer feel underfoot.
Coated sand is silica sand that has been rounded and often tinted to match the turf color or to add visual depth. Because the grains are rounded rather than angular, coated sand feels gentler to walk on and is often chosen for residential yards, patios, and play areas. Zeolite is a porous mineral that has a natural affinity for ammonia and other odor compounds; it is commonly blended with silica sand in pet turf and dog runs to help control odor at the source. Antimicrobial and cooling coated infills, such as Envirofill, are engineered to inhibit bacterial growth and to reduce surface heat in high-sun applications. These premium infills cost more than basic silica but are worth considering in pet areas or in yards where heat is a concern. Crumb rubber (recycled tire material) is used in sports fields and artificial turf courts because of its shock absorption, but it is not recommended for residential yards, pet areas, or play spaces where young children are present, and we do not install it in those applications.
How Much Infill Artificial Grass Needs, and Why
Infill quantity is specified in pounds per square foot, and this number is critical to the performance of your turf. The infill holds the synthetic fibres upright, much as sand holds real grass blades vertical; without enough infill, the turf will mat down, wear faster, and look thin and tired. Infill also protects the turf backing from direct UV exposure, which degrades the material over time. Additionally, the weight of the infill helps anchor the turf in place, especially important in a yard with wind exposure or on a slope, and it contributes to the drainage performance of the system by creating pathways for water to flow through to the base below.
Typical residential installations use between 1.5 and 3 pounds of infill per square foot, depending on the turf product, fibre type, pile height, and intended use. Pet turf and dog runs often require more infill to maximize odor control and durability. Putting greens require less infill to maintain the firm, fast surface needed for play. A common shortcut taken by budget installers is to under-fill the turf, saving material cost while leaving the homeowner with a product that fails prematurely. Always ask your installer for the infill amount in writing, specified in pounds per square foot, and verify that it matches the turf manufacturer's recommendation for your product. This single number tells you whether the installer is cutting corners or building to spec.
What to Put Under Artificial Grass for Drainage
The foundation under artificial grass is as important as the turf itself. The process begins with removal: existing bermuda lawn, old turf, roots, and debris must be cleared and hauled away. Once the ground is bare, the next step is excavation and grading. The goal is to create a smooth, well-draining base that slopes gently away from the house, the pool, or other structures to prevent water from pooling against foundations. The depth of excavation depends on the existing soil and the intended use, but typically ranges from three to four inches for residential yards.
After grading, a weed barrier (usually a non-woven geotextile fabric) is laid to prevent weeds from growing up through the turf. This is followed by the installation of a free-draining base material, most commonly decomposed granite or crushed base rock, which is then compacted firmly in layers using a plate compactor. For pet areas, play spaces, and patios, an optional draining underlay or foam pad may be installed on top of the base to provide additional cushioning and to improve drainage. Finally, the turf itself is laid over this prepared foundation. On hard surfaces such as concrete, pavers, balconies, or rooftops, the process is different: the turf is installed over a draining underlay or pad rather than on a gravel base, and edge drainage must be carefully detailed to prevent water from being trapped under the turf. Never glue turf flat to a concrete slab without drainage; water will accumulate, odor will develop, and the backing will degrade.
Base Prep on Glendale Soil: Excavation, Base Rock and Compaction
Glendale's soil presents a specific challenge: the ground is hard, compact desert caliche (a calcium carbonate layer) that does not drain well on its own. When artificial grass is installed over unprepped caliche, water has nowhere to go. It sits under the turf, creating puddles, promoting odor in pet areas, and eventually causing the base to settle unevenly, leaving dips and soft spots. Proper base preparation in Glendale means excavating through the caliche layer, removing it if necessary, and replacing it with a free-draining material such as decomposed granite or crushed base rock.
The base must be graded with a slight fall away from the house and away from any pool or structure to encourage water to flow off the property rather than pooling. Once the base material is in place, it must be compacted firmly, typically in three or four lifts of three to four inches each, using a plate compactor. An uncompacted base will settle over time, creating low spots where water collects and where pet odor becomes trapped. If a yard has a genuine water problem, such as poor site drainage, a high water table, or a history of standing water, drainage must be addressed first, either by installing a French drain, improving the grade, or by declining the job if the problem cannot be solved. We will not install turf over a foundation that cannot drain, because the result will be failure and frustration.
Artificial Grass Drainage and Underlay: Perforated vs Fully Permeable
Artificial turf backing comes in two main types: perforated and fully permeable. Perforated backing has small holes punched through it to allow water to pass through; fully permeable backing is engineered to allow water to flow through the material itself without discrete holes. Drainage rate is specified in gallons per hour per square foot, a measure of how fast water moves through the turf and backing. A higher drainage rate is better for pet areas and for climates with heavy rainfall, such as Glendale during monsoon season. However, even the fastest-draining turf will fail if the base underneath does not drain. Water that passes through the turf will sit on a compacted caliche base or an uncompacted, poorly graded foundation, and that water will cause puddles, odor, and eventual failure.
For hard surfaces such as concrete, pavers, balconies, or rooftops, a draining underlay or foam pad is installed between the turf and the surface. This pad allows water to flow laterally to the edges and off the surface rather than being trapped. The edges must be detailed with proper drainage so that water does not accumulate at the perimeter. Underlays also provide cushioning for comfort and protection for the surface below. Do not accept an estimate that specifies turf drainage rate without also specifying the base material, base depth, compaction, and edge drainage plan. A fast-draining turf on a poor base is a false economy; you are paying for drainage capability that cannot be realized.
Seams, Nails, Edging and Power Brooming
The finishing details of a turf installation reveal whether the work was done by someone who understands the craft or by someone simply laying material and leaving. Seams, the joints between pieces of turf, are joined using seam tape and a flexible polyurethane or latex adhesive. The tape is applied to the underside of the backing, and the two pieces are pressed together with the grain aligned so that the seam is as invisible as possible. Seams that are visible, that have gaps, or where the grain does not match indicate either poor technique or insufficient curing time before foot traffic. Nails or staples are used to secure the turf to the base, typically spaced six to eight inches apart around the perimeter and at seams, driven flush so they do not catch on the fibres.
Edges are finished with bender board (a flexible wood or composite edge restraint) or a secured perimeter that prevents the turf from shifting. Where turf meets pavers, cool decks, or pool decks, the turf should be cut tight to the edge so that infill does not spill onto the adjacent surface and so that water drains cleanly. Power brooming is the final step: the turf is brushed with a mechanical broom to stand the synthetic fibres upright and to spread the infill evenly across the surface. This process also removes footprints and equipment marks from installation. A well-finished installation shows no visible seams, clean and secure edges, and fibres that stand uniformly upright. If you see lifted edges, visible seams with gaps, or areas where the infill is concentrated and others are bare, the work was not finished to standard.
What a Written Turf Spec Should Include
Before any work begins, you should receive a written specification that details every material and method your installer will use. This spec is your insurance and your reference if questions arise during or after installation. A complete written spec includes the turf product name and fiber type (polyethylene, polypropylene, or nylon), face weight in ounces per square yard, pile height in millimeters, backing type and drainage rate in gallons per hour per square foot, infill type and amount in pounds per square foot, base material and depth, base compaction method, whether a weed barrier will be used, seam method and location, edging material and method, cleanup and haul-off scope, and the workmanship warranty period (typically one to three years on the installation itself). This spec should be site-specific, not a generic form; it should reflect the actual conditions of your yard and the choices you have made about product and infill.
A spec also protects the installer by making clear what is and is not included in the price and what the homeowner can expect. If your installer cannot or will not provide a written spec, that is a red flag. A local, independent turf installation company will name the product, specify the face weight and pile height, detail the infill and base, and stand behind the work in writing. For a free estimate and a detailed spec for your Glendale yard, call us at (623) 755-9278 or visit our pricing page to learn more about how we approach the work.