You spent real time and real money designing your pool to look exactly the way you wanted it. The curve of the edge, the finish on the interior, the way it fits into the landscape around it — all intentional. Covering it up for seven months of the year might feel like a necessary inconvenience, but your pool safety cover is actually doing quite a lot of work on your behalf while it sits there looking unglamorous.
A quality inground pool safety cover protects your water chemistry, prevents algae from taking hold over winter, keeps debris out, and creates a physical barrier for children and pets who might wander into the yard unsupervised. For a custom inground pool in the Lehigh Valley, it’s one of the less exciting decisions you’ll make. It’s also one of the more consequential ones.
Here’s what’s actually worth knowing.
What Your Pool Safety Cover Is Doing All Winter Long
Most pool owners think of a cover as a seasonal closing step. Pull it off in spring, put it on in fall, done. A well-designed safety cover is quietly earning its keep in several ways at once, and understanding what those are changes how you think about what you’re willing to invest in one.
Safety that doesn’t take a day off. Your pool is a beautiful feature of your property, and it’s also an open body of water. A properly installed inground pool safety cover supports the weight of a child or pet who might wander onto the surface. That matters not just through the winter but on any warm October afternoon or early May morning when the pool is technically closed but the yard is very much in use. Accidents move faster than people expect, and a cover built to hold up under unexpected weight gives you genuine peace of mind.
Algae prevention starts with blocking sunlight. This surprises a lot of pool owners: algae doesn’t need warm water to grow. It needs sunlight. Standard mesh covers allow UV rays to pass through to the water below, which gives algae exactly the growing condition it needs through a Pennsylvania winter. If you’ve ever pulled a cover off in April and found water that looked more like a pond, that’s why. A safety cover designed to block sunlight is the most effective algae prevention tool you have during the off-season.
Lower chemical demand all season. A pool with the right safety cover in place can see chemical consumption drop by 35 to 36 percent over the course of the season. For homeowners managing their own water chemistry, that’s meaningful money and meaningful time. Fewer swings to correct, less guesswork, and more consistent water throughout the year.
Debris that doesn’t enter doesn’t need to be removed. Every leaf, pollen particle, and twig your cover intercepts is something your filter doesn’t have to process and something you don’t have to skim. The filtration system runs more efficiently, and the water stays cleaner between openings.
Heat and water stay where they belong. Covered heated pools retain warmth significantly better during off-hours and through the shoulder seasons, when the water is warm but the nights are not. A pool safety cover also slows evaporation, which means fewer refills and less chemical correction after water loss.
Why a Custom Pool Requires a Custom-Fitted Safety Cover
Here’s where things get specific. A standard rectangular cover fits a standard rectangular pool. If your pool has a freeform shape, an integrated step, a tanning shelf, a spa, or a perimeter that follows the natural contour of your Lehigh Valley yard, an off-the-shelf cover is a compromise that shows up in the wrong places.
Gaps at the edges or around step areas are a safety problem before they’re an aesthetic one. A pool safety cover that doesn’t account for the actual shape of your pool leaves openings that undermine the whole point of having one.
B&B Custom Pools partners with Merlin Industries on safety covers because Merlin approaches each cover the same way a good pool builder approaches each pool: as a custom design problem with a specific right answer. Every Merlin safety cover is designed using computer-aided drafting to accommodate the exact angles, steps, water features, and configurations of your individual pool. The cover that arrives is built for your pool specifically, not for a size category that approximates it.
That precision is what makes a pool safety cover perform the way it should: safely, snugly, and without gaps that leave any room for concern.
Merlin SmartMesh Safety Covers: Why This Is What We Recommend
Among Merlin’s lineup, the SmartMesh is what most of our clients end up choosing, and the reasoning holds up when you look at what it actually does.
The SmartMesh is a patented hybrid cover. Merlin holds U.S. Patent No. 6,886,187 on the material itself, and the innovation is straightforward: SmartMesh combines the practical advantages of mesh and solid covers in a way no other product on the market replicates. The mesh allows rainwater and snowmelt to drain through naturally, so there’s no standing water accumulating on top through the winter. Simultaneously, the material blocks 100 percent of sunlight, delivering true algae prevention that standard mesh covers simply cannot provide.
The filtration performance adds another layer of value. SmartMesh filters debris down to 40 microns. A typical pool sand filter handles particles down to about 20 to 30 microns, so the cover functions almost like a secondary filtration layer sitting over your water through the off-season.
On durability, the Merlin SmartMesh delivers consistently:
- Highest burst strength, tear strength, and abrasion resistance of any cover in its category
- Approximately 40% lighter than solid safety covers, which matters at the start and end of every season
- Break-strength exceeding the government safety standard for pool covers by more than three times
- Stainless steel springs and buckles, brass anchors for secure installation
- Backed by a 15-year limited warranty
- Manufactured entirely in the United States with materials that meet or exceed industry standards
The difference shows up most clearly on opening day. Homeowners who switch to a Merlin SmartMesh cover describe the spring experience as noticeably easier: cleaner water, less chemical correction to reach swim-ready status, and a faster start to a season they’ve been looking forward to since October.
How to Know Whether Your Current Cover Is Still Doing Its Job
If your current setup is a water-bag style cover, or if it’s been several years since anyone looked closely at the fit and condition of what’s on your pool, spring is a natural time to evaluate. Older covers showing visible wear, fraying at the edges, or anchor points that no longer hold clean tension are not performing at the level they appear to be. Degraded material and poor fit compromise both safety and winter protection, and both of those problems show up as higher costs and more work at spring opening.
Our team at B&B Custom Pools can walk you through what a properly fitted Merlin safety cover would look like for your specific pool, with no pressure to decide anything on the spot. You put care into designing that pool to suit your preferences. The cover conversation deserves the same thoughtful approach.
Contact us to schedule a pool safety cover consultation.
Other Pool Cover Options Worth Knowing About
The SmartMesh is what we recommend most often, but it’s not the only option worth discussing. B&B also provides quotes on remake covers from Anchor, Loop-Loc, and Meyco, which is useful for pool owners who have an existing anchor system they’d like to work with, or who want to explore different materials and price points before deciding.
The right pool safety cover for your situation depends on your pool’s shape, what’s growing around your yard (heavy tree coverage changes the debris and filtration equation considerably), and what you’re prioritizing between ease of spring opening and upfront cost. These are practical questions with practical answers once someone familiar with the Lehigh Valley environment and your specific pool is involved.
The full scope of B&B Custom Pool’s services is available on our services page, and we’re glad to answer questions before you’re ready to schedule anything.
Spring and Early Summer Is the Right Time to Order a Pool Cover
If you know you want a new pool safety cover before next winter, waiting until fall closing is the wrong plan. Custom safety covers are manufactured to order, and the fall closing window is the pool industry’s busiest period. Lead times stretch, scheduling gets complicated, and pool owners regularly end up closing with what they have rather than what they wanted.
Spring and early summer are the better window for this decision. Evaluate what you currently have, determine whether it’s still performing reliably, and place an order if it isn’t. The new cover will be ready and waiting when you need it in the fall, rather than the other way around.
The B&B pool maintenance team is available through the season for cover evaluations, and pairing that conversation with your spring opening service means everything gets reviewed in a single visit.
Protecting the Pool You Designed
A custom inground pool is a meaningful investment in your property and in the quality of your time at home. The design choices, the materials, the landscaping surrounding it all came together deliberately. A properly fitted pool safety cover is what protects all of that through the months when the pool isn’t in use: the water, the equipment, the surfaces, and the people you care about.
A cover that fits well and is professionally installed does its job without drawing attention to itself for years. One that is aging past its useful life, or never fit correctly to begin with, shows up in the spring as higher costs, more chemical correction, and safety considerations that are easy to overlook until they can’t be.
To learn more about Merlin SmartMesh safety covers, get a quote for a custom-fitted cover for your Lehigh Valley pool, or find out whether what you currently have is still performing the way it should, we’re here for all of it.