A customer called us last month after buying powder for his pool filter, and he had no idea what to do with it. He had already watched videos and read a few web pages, but none of it told him anything about his pool. So he picked up the phone, and we walked him through it. He told us afterward that it was the first clear answer he had gotten.
That call is a good picture of how we work.
A pool supply store in McAllen, Texas
First Pools USA sells chemicals, filters, pumps, heaters, parts, and cleaning equipment. Most of our customers maintain their own pools, and some are professionals who do it for a living.
We are based here in the Rio Grande Valley, and we ship across the country. Both of those matter, and we will come back to each one.
Veteran owned

First Pools USA is a veteran-owned small business. Our owner and Air Force veteran, Jay Carlsen, started this company because he saw an opportunity to create jobs in the Valley, and he has invested in local talent ever since.
The store began as RGV Master Pool Services. Jay changed the name to First Pools USA because his vision grew. Serving the Valley is our passion. Shipping nationwide is our commitment to supporting pool owners.
We know pools, so you don't have to
Taking care of your first pool means learning a whole new vocabulary. Dozens of chemicals with long names, and the labels rarely explain what you actually need to know: how much to use, when to use it, and what happens if you get it wrong.
We spend all day with these products, so we are prepared for the questions customers bring us. Whatever your water is doing, chances are we have seen it before and can help you improve it.
Tell us about your pool situation, and we will guide you through what to buy, how much, and how to use it. If we are not certain, we will look it up and call you back rather than guess.
You don't need to know the right brand name
People often ask for a product by name because they saw it somewhere else or used it before, and plenty of stores will simply say they don't carry it. We would rather figure out what the product actually is and show you the one on our shelf that does the same job. Knowing brand names is our job, not yours.
Free delivery across the Valley
If you are anywhere from Mission to South Padre Island, we deliver to you for free. That covers Hidalgo and Cameron Counties: McAllen, Edinburg, Pharr, San Juan, Alamo, Donna, Weslaco, Mercedes, Harlingen, San Benito, Brownsville, Port Isabel, and the towns in between.
There is no minimum order. If you need one bucket of tablets, we will bring you one bucket of tablets.
You can also order online and pick everything up at the store. First Pools USA is dedicated to making your shopping experience convenient.
Free water testing
Bring us about an ounce of your pool water in a clean, airtight container, and we will test it at no charge. You will get a reading on your chemical balance and our recommendation for what to do about it. No appointment. Just bring the sample in.
Hablamos Español
Llámenos, venga a la tienda o envíenos un correo y te ayudaremos en la mayoría de las horas que estamos abiertos.
Sabemos que el mantenimiento de las albercas es difícil, y nos encantaría ayudarlo en su idioma materno
For customers across the country
We ship pool supplies nationwide, and a lot of those orders start with a part number. If you know the number, search for it on our site. If the number doesn't turn anything up, or you are not sure it's the right part, call us, and we will work it out with you.
That matters more than it sounds. Pumps and heaters have to match your setup, and the wrong choice is expensive to discover after it ships. We would rather spend a few minutes confirming the specifications than send you something that does not fit.
The conversation doesn't end at the register
Buying the product is usually the easy part. Using it correctly is where people get stuck, so we will check-in to make sure your product use went smoothly.
Call us as you go. Ask how much to use this time, or what to do if the water color still isn’t quite right, or when you should expect to see a difference.
We take pride in our customers who call ahead so their order is waiting when they arrive. That means you trust us to help you with one of your most expensive assets.
Shop with First Pools USA
If you are in the Valley, stop by 125 W Nolana Ave, McAllen, TX 78504. We are open Monday-Friday, 9 a.m.–5 p.m., and you can reach us at +1 (956) 203-1804.
If you are somewhere else, you can order anytime at firstpoolsusa.com. And if you would rather talk it through with someone first, call us.
Bring your questions. We like them.