A quick, hands-off look at the pump, filter and heater can flag thousands in costs before you commit.
The owner's briefIn part one, we covered why the pool often gets a quick wave from the home inspector and not much more. You can close part of that gap yourself, starting at a spot most buyers walk right past: the equipment pad.
This series was shaped with practical insight from the team at H2O Pool Services, whose hands-on work with pumps, filters and heaters informed much of what follows. Their main point is simple. The machines that keep a pool running all have a working life, and that life leaves clues anyone can read.
The equipment pad is usually a small slab along a side yard or behind a wall. It holds the pump, the filter, the heater if there is one, plus pipes, valves and a timer or control box. Together, these parts can cost several thousand dollars to replace. Knowing their rough age before you make an offer shows you what you are really buying.
If you have not yet read why the pool gets skipped">the pool gets skipped, start there. Then bring your phone and five spare minutes to your next showing.
You need no tools or training, just a close look and good notes. Ask your agent to confirm the seller is fine with you stepping into the side yard.
Start with one wide photo of the whole pad. It shows how the parts are laid out, whether they match in age and how well the setup has been cared for.
Most pool equipment carries a sticker or metal plate with the model and serial number. Many makers build the year and month, or year and week, into the first few characters of that serial. You may not decode it on the spot, and that is fine. A photo lets you look it up later or hand it to a pool tech who knows the codes.
The pump is the heart of the pool, pulling water through the system for hours every day. In the Phoenix heat, many pumps run long cycles all summer, so they often wear out sooner than buyers expect. A common working life is around 8 to 12 years, though hard use can shorten it. Beyond the label, check for these signs of age:
Also note whether the pump is variable speed. These use far less power than older single speed models, so an old single speed pump may mean a swap down the road anyway.
The filter has two ages. The tank often lasts 10 to 15 years, but the parts inside wear out much faster. Cartridges usually need replacing every year or few, sand every five to seven years, and DE grids fall somewhere in between, depending on care.
So a tank that looks fine may still hide tired insides. A stuck, foggy or missing pressure gauge is a small fix, but it hints at how closely the system has been watched. Check the clamp band and the base for cracks. A cracked tank is a full replacement, not a quick repair.
The team at H2O Pool Services stresses that a filter rarely fails alone. When it is clogged or neglected, the pump strains harder and both parts age faster, so judge them as a pair.
Ask your agent to request any pool service records from the seller. A simple receipt can tell you more than any label. Sellers deciding between a cash offer or agent sometimes skip repairs altogether. If a home is being sold without repairs, the paperwork matters even more, and our look at selling as is in Phoenix explains why buyers should go in with eyes open.
Reading about it is one thing. Seeing a real cash figure for your own address, with the repair math laid out line by line, is usually what settles the decision. Plenty of owners use our number as a floor and then test the open market against it.
Not every pool has a heater, but when one is there, it is usually the most costly part on the pad. Gas heaters often last around 7 to 12 years, and heat pumps can run a bit longer with good care. In a desert climate, a heater may sit unused for months, and that idle time brings its own wear.
Find the rating plate, often on the side or inside a small access door that opens without tools. Do not remove panels. Just photograph what you can see.
Then look for clues. Black soot around the top vent of a gas heater can point to poor burning or a past problem. Rust streaks down the cabinet show long exposure. Bent or crushed coil fins on a heat pump mean reduced airflow. Nests or chewed wires are common in units that sit idle. Any of these makes a heater worth a closer look by a pro.
Once you have photos and notes, sort each part into one of three groups for a quick sense of risk before you set your offer price.
A replacement pump can run from several hundred dollars to well over a thousand installed, and a new heater can cost several thousand. If two or three parts land in the last group, that is real money. It belongs in your thinking now, not as a shock after closing. You will learn how to put those findings to work in asking for repairs or credits">asking for repairs or credits, later in this series.
Age is only half the story. Care counts just as much. A ten year old pump on a well kept pad can outlast a five year old one that was ignored. “Most equipment damage we see starts with water that drifted out of balance for weeks,” says Daniel Reyes, service manager at BD Pools and Spas. “Steady upkeep, like a simple weekly pool routine, protects the pump and heater far more than people realize.”
Ask the seller how often the pool was serviced and by whom. A regular service history is a good sign. A long gap deserves a follow-up question.
Note where the pad sits, too. Equipment crammed behind a tight wall with no shade bakes all day, while a pad with some cover and airflow tends to hold up better. If you are thinking about the whole outdoor space, our guide to backyard design rules covers how to plan around features like this.
The equipment is only one piece of the pool picture. The shell, tile and plumbing can hide bigger, costlier problems that get harder to see once the weather cools. Next in the series, we cover how to spot leaks and cracks">spot leaks and cracks during a showing before a cover goes on.
A few minutes at the equipment pad can tell you a lot. Labels and serial plates point to age, while faded plastic, rust, soot and leaks show how hard each part has worked. Sorting the pump, filter and heater into simple groups turns those clues into a rough budget you can use before you pick an offer price.
None of this replaces a pool specialist, but it puts you in a stronger spot. You walk in knowing which parts may be close to the end, which questions to ask and what records to request. That small habit can be the difference between a planned expense and a surprise bill in your first hot summer.
Kim's Properties has bought homes across Phoenix, Scottsdale, Mesa and the rest of the Valley for more than a decade. Call the office on 24th Street or send a few details online, and you will hear back from our team, not a call center.
