Pontoon boats for Arizona lakes: what to know before buying used

Why pontoon boats work on Arizona lakes

Pontoon boats are popular on Lake Pleasant, Bartlett, and Saguaro because they deliver what most Arizona boaters want: shade, seating for groups, and stable platforms for swimming and hanging out. They are not fast and they are not built for watersports, but they handle heat better than most boats because of the open layout and standard bimini tops.

Most Arizona pontoon owners use their boats for cruising, swimming, and anchoring in coves. The flat deck and low freeboard make it easy for kids and older passengers to get on and off. You can add furniture, coolers, and grills without worrying about weight distribution the way you do in a runabout.

Tube construction and condition

Two-tube vs. three-tube

Most pontoons have two aluminum tubes (pontoons) running the length of the boat. Three-tube models add a center tube for better weight capacity and handling. Three tubes cost more new and used, but they ride better in chop and handle more weight without sagging or porpoising.

For Arizona lakes, two tubes are fine unless you plan to load the boat with 12+ people or add heavy accessories like a full wet bar. Lake Pleasant and Bartlett can get choppy on summer afternoons. Three tubes help if you run in those conditions often.

Tube damage and corrosion

Pontoon tubes are welded aluminum. They should be airtight and watertight. Most manufacturers use .080 to .100 inch wall thickness. Thicker is better for durability.

When inspecting a used pontoon, check the tubes carefully. Look for dents, scrapes, and corrosion. Small dents are cosmetic. Deep dents or creases near the nose can affect handling. Check welds at the nose cones and along the seams for cracks or separation.

Corrosion shows up as white powder or pitting on the aluminum. Some surface oxidation is normal, especially on boats kept outside in Arizona. Heavy pitting or flaking means the tubes are thinning. Tap the tubes with a wrench. They should sound solid and metallic, not dull or hollow.

Leaking tubes are rare but catastrophic. If a tube takes on water, the boat will list to one side. Ask the owner if the boat sits level in the water. If it leans, walk away or insist on a pressure test before buying.

Lifting strakes and performance packages

Many pontoons have lifting strakes welded to the bottom of the tubes. Strakes are like small fins that help the boat plane faster and improve handling. They add 3 to 5 mph in top speed and reduce fuel consumption.

Performance pontoons (like Bennington SPS, Harris Crowne SL, or Manitou XT) have full-length strakes, larger diameter tubes, and higher horsepower ratings. These boats can hit 35 to 45 mph with the right engine. Standard cruising pontoons top out around 25 to 30 mph.

For Arizona, performance packages are nice but not required unless you plan to run long distances on Roosevelt or Havasu. Most families are fine with a standard cruising pontoon and a 90 to 115 HP outboard.

Deck construction and condition

Plywood vs. aluminum frame

The deck sits on top of the tubes. Older pontoons use marine plywood over aluminum stringers. Newer pontoons use all-aluminum frames or composite materials. Plywood is fine if it stays dry, but Arizona heat and occasional leaks cause rot.

Check the deck by walking around and feeling for soft spots. Solid decks feel firm under your feet. Soft or spongy sections mean the plywood underneath is wet or rotting. Pull back the carpet in corners or under seats if the owner allows. Look for discoloration, mold, or swelling.

Deck rot is expensive to fix. Replacing a full plywood deck costs $2,000 to $5,000 depending on size and labor. If the deck has significant rot, negotiate hard or pass unless you are ready for a project.

Carpet and vinyl

Most pontoons have marine carpet on the deck. Arizona sun destroys carpet fast. Look for fading, matting, and tears. Worn carpet is not a deal-breaker but factor in $800 to $1,500 for replacement.

Vinyl flooring (Treadmaster, SeaDek, woven vinyl) is becoming more common. It lasts longer than carpet, does not hold water, and cleans easier. If the boat has vinyl, check for tears, lifting edges, and UV damage (fading or brittleness).

Furniture and upholstery

Pontoon furniture is modular and bolted to the deck. Check the seat frames for cracks, rust, or loose bolts. Vinyl upholstery should be intact without major tears, cracks, or fading.

Arizona UV is brutal on vinyl. Pontoons stored outside will show cracking and discoloration after 5 to 10 years. Reupholstering a pontoon costs $1,200 to $3,000 depending on the number of seats and options (piping, contrast stitching, etc.).

Some sellers replace just the worst seats. Check all of them, including under the seat bottoms where tears hide. Make sure cushions are not moldy or holding water inside the foam.

Engine and power

Outboard size

Most pontoons use a single outboard motor mounted on a bracket at the stern. Common sizes are 90, 115, 150, and 200 HP. Larger pontoons (over 24 feet) and performance models need 150 HP or more to plane and reach top speed.

Underpowered pontoons are sluggish and burn more fuel trying to get on plane. Ask for the manufacturer's horsepower rating (usually on a plate near the motor bracket). The engine should be at or near the maximum rating unless the boat is only used for slow cruising.

Outboard brand and age

Yamaha, Mercury, and Honda are the most common brands. All three are reliable if maintained. Suzuki and Evinrude are also fine but less common in Arizona, which means fewer mechanics and parts.

Check engine hours if the motor has an hour meter. Most outboards are good for 1,500 to 2,000 hours with regular service. Low hours are better, but hours are not the only measure. A well-maintained 600-hour motor is better than a neglected 200-hour motor.

Look for clean oil, smooth idle, no smoke at startup, and good throttle response. Test drive the boat if possible. The engine should start easily, accelerate smoothly, and reach top RPM without bogging or overheating.

Lower unit and prop

The lower unit is the gearbox and propeller housing below the powerhead. Check the prop for damage (bent blades, missing pieces). A damaged prop causes vibration and reduces performance.

Check the lower unit for oil leaks around the seals. Pull the drain plug and look at the oil color. Gear oil should be dark and clean, not milky or full of metal shavings. Milky oil means water is getting in through bad seals. Budget $300 to $600 for seal replacement and service.

Arizona-specific issues

Sun damage

Arizona sun fades gelcoat, cracks vinyl, and weakens bimini tops. Inspect the bimini frame for cracks and the canvas for tears and UV damage. Replacing a bimini top costs $400 to $1,200 depending on size.

Check all plastic and rubber components (cup holders, latches, hoses, seals). Brittle or cracked parts are signs of extended sun exposure. These are small fixes but they add up.

Storage and trailering

Pontoons stored outside age faster than boats kept in garages or under covers. Ask how the boat was stored. Outside storage is fine if the owner used a quality cover and maintained the boat, but expect more wear on upholstery, carpet, and canvas.

Check the trailer for rust, worn tires, and bearing condition. Pontoon trailers are long and heavy. Tires should have good tread and correct load rating. Wheel bearings should be greased regularly. Rusty or pitted axles and springs are red flags.

Mineral deposits and flushing

Arizona lakes vary in mineral content. Saguaro and Canyon Lake are cleaner. Pleasant and Alamo have more minerals. Outboard motors need flushing after each use to prevent mineral buildup in the cooling system.

Ask the seller if they flushed the motor regularly. Most pontoon owners skip this step. If the motor has not been flushed, budget for cooling system service (descaling, thermostat replacement, impeller check). Cost is $200 to $500 depending on condition.

Popular pontoon brands in Arizona

Bennington, Harris, Manitou, Avalon, and Sun Tracker are the most common brands. Bennington and Harris are premium brands with better build quality and higher resale values. Avalon and Sun Tracker are mid-range and offer good value for families. Manitou focuses on performance pontoons.

Older brands like Crest, Lowe, and Godfrey are also solid. Check the specific model and year rather than relying only on brand reputation. Build quality varies by year and model line.

Price expectations for used pontoons in Arizona

Prices vary by length, age, condition, and brand. Rough guidelines:

• 18 to 20 foot, 10 to 15 years old: $12,000 to $22,000
• 22 to 24 foot, 5 to 10 years old: $25,000 to $45,000
• 24 to 26 foot, under 5 years old: $50,000 to $80,000
• Performance models (three tubes, 200+ HP): add $5,000 to $15,000

Private sellers usually price 10 to 20 percent below dealer retail. Check Boats For Sale Phoenix for current listings and compare pricing. You can filter by pontoon boats to see what is available.

Inspection checklist before buying

• Inspect tubes for dents, corrosion, and leaks. Check welds and nose cones.
• Walk the deck and feel for soft spots or rot. Lift carpet edges if possible.
• Check furniture frames, upholstery condition, and cushion foam.
• Inspect bimini top, canvas, and all plastic or rubber parts for UV damage.
• Test the outboard: smooth idle, no smoke, good throttle response.
• Check prop condition and lower unit for leaks or milky oil.
• Verify engine hours and maintenance records (oil changes, impeller, lower unit service).
• Inspect trailer: tire tread, bearing grease, frame rust, lights, winch.
• Test drive if possible. Check handling, top speed, and noise levels.
• Budget for immediate repairs or upgrades (carpet, upholstery, bimini, motor service).

Pontoon boats are great for Arizona lakes if you buy one in good condition and keep up with basic maintenance. Take your time, inspect carefully, and negotiate based on real condition rather than just age or hours. A well-kept older pontoon will outlast a neglected newer one.