Underwater Hull & Propeller Cleaning

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Underwater Hull & Propeller Cleaning Professional underwater services for boats and yachts.
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Underwater hull & propeller cleaning
Removal of ropes, lines and debris
Propeller service support
Zinc replacement
Underwater hull inspection
Miami and surrounding areas

10/09/2026

Replacing a sacrificial anode on the trim plate of a large yacht. Anodes should generally be replaced when they reach about 50% wear. That's why the old one may still look pretty big, but on expensive yachts, it's better to replace these parts before they become a problem. Just like in aviation, preventive maintenance is much cheaper than dealing with the consequences of a failure.

You can clearly see the difference between the old and new anodes in this video. It's not just about their size, but how much sacrificial material remains to corrode instead of the metal components we're protecting.

After removing the old anode, we thoroughly clean the mounting surface to ensure proper metal-to-metal electrical contact. Then we securely install the new one until the next scheduled replacement.

We use Zimar sacrificial anodes and don't cut corners on corrosion protection.

We also provide underwater hull cleaning, propeller restoration, removal of ropes and fishing lines from running gear, underwater inspections and video reports, zinc replacement, and other commercial diving services throughout Miami and South Florida.

Experienced, insured, and ready to help with your next underwater maintenance job. DM us anytime!

10/04/2026

During a scheduled monthly hull cleaning, we found a piece of rope wrapped around one of the propellers. Naturally, we removed it before it had a chance to create a bigger problem.

In Miami waters, we regularly find foreign objects around boats — ropes, plastic bags, fishing line, sticks, and other debris that can wrap around propellers and shafts or block underwater intakes and sea strainers.

This is one of the advantages of having the same diver regularly take care of your boat. We know what the underwater section looked like last month, so new damage, unusual wear, missing or deteriorating anodes, fishing line, rope, impact marks, or other changes are much easier to notice. We document what we see, report it to the owner, and keep an ongoing video history of the underwater condition of the vessel.

Over time, those monthly reports create a useful maintenance record. And when we’re talking about yachts worth millions — sometimes tens of millions of dollars — having documented evidence that the vessel has been regularly inspected, cleaned, and cared for certainly doesn’t hurt. A well-maintained yacht with a clear history is a very different proposition from a boat whose underwater condition is a complete unknown.

Take care of your boats and enjoy them. We’ll help take care of everything below the waterline.

We are insured and experienced, providing monthly and one-time hull cleaning, propeller and running gear cleaning, rope and fishing-line removal, sacrificial anode replacement, thruster and underwater intake service, underwater inspections, photo and video reports, troubleshooting, underwater repairs, welding and cutting, and other commercial diving services.

Serving Miami, Miami Beach, Key Biscayne, Aventura, Sunny Isles, Hallandale Beach, Hollywood, Fort Lauderdale, and throughout South Florida.

DM us to set up regular underwater maintenance for your boat or yacht.

09/28/2026

Sacrificial Anode Replacement | Yacht Boat Lift

This time we’re replacing the sacrificial anodes on the yacht’s boat lift system. This is an expensive underwater structure with multiple moving metal components that are constantly exposed to saltwater and can actively corrode without proper electrochemical protection.

That’s why we prefer to replace sacrificial anodes proactively — before they are completely consumed. A good rule is to replace them at around 50% depletion, and boats and underwater equipment kept continuously in Florida saltwater should have their anodes inspected regularly. There is no single replacement interval for every installation: water conditions, marina electrical environment, bonding and the amount of protected metal can significantly affect how quickly anodes are consumed.

For this job we use Zimar sacrificial anodes — a proven and reliable product. On expensive underwater equipment like a yacht boat lift, proper corrosion protection is definitely not where we recommend cutting costs.

SPEARTRIBE LLC provides professional underwater yacht services throughout South Florida, including hull cleaning, propeller and running gear cleaning, sacrificial anode replacement, underwater video inspections, propeller removal and installation, boat lift cleaning and custom underwater work.

Regular underwater inspections allow us to monitor anode wear, marine growth and the condition of underwater equipment before small issues become expensive problems.

SPEARTRIBE LLC — Insured Underwater Yacht Services in South Florida.

09/28/2026

A short clip from our final inspection video after cleaning a 64-foot yacht.

This is a newer, high-value yacht, but the underwater maintenance had been neglected for a while. Bringing everything back into good condition took roughly twice as long as it would on a yacht that receives regular, professional hull cleaning.

Extra time isn’t the only downside of irregular maintenance. The longer marine growth stays on the boat, the more aggressively it has to be removed. Barnacles and oysters attach firmly to the surfaces, requiring more mechanical cleaning and putting more stress on the antifouling coating, running gear, propellers, and other underwater components.

For us, it’s absolutely a manageable job — we actually enjoy bringing boats like this back into shape. But regular maintenance is always better: less aggressive cleaning, less impact on the antifouling, less time underwater, and a consistently clean underwater section.

We can take care of the entire underwater side of your yacht: regular or one-time hull cleaning, propeller and running gear cleaning, sacrificial anode replacement, thruster and underwater intake service, underwater inspections, photo and video reports, equipment condition checks, and practical maintenance recommendations.

We are insured, experienced, and serve Miami and South Florida. Need your yacht cleaned or want to set up regular underwater maintenance? DM us.

09/28/2026

Sacrificial anode replacement on a large yacht. A small component with a very important job — the anode sacrifices itself to help protect much more expensive underwater metal components such as shafts, propellers, rudders, thrusters, and other equipment from corrosion.

In Florida, anodes need close attention. We don’t rely only on time — we inspect their actual condition. A common guideline is replacement at around 50% depletion. On yachts that remain in saltwater year-round, regular inspections are important, and replacement may be needed roughly every six months depending on the vessel and its environment.

We use Zimar anodes and pick them up directly from the manufacturer here in South Florida. On large, expensive yachts, sacrificial anodes are definitely not the place to save a few dollars. The price of a quality anode is small compared with the cost of the equipment it protects.

Installation matters just as much as the quality of the anode. We remove the old anode, thoroughly clean the mounting surface down to clean metal, ensure proper metal-to-metal contact, then install and securely tighten the new one. Without proper electrical contact, even a high-quality anode cannot provide the protection it was designed for.

We are insured and provide professional commercial diving services throughout Miami and South Florida: sacrificial anode replacement, underwater hull cleaning, propeller and running gear cleaning, thruster service, underwater inspections and video reports, underwater repairs, welding and cutting, and other underwater work for private yachts, commercial vessels, and marinas.

Need underwater yacht maintenance? DM us.

09/19/2026

Sacrificial anode replacement on a large yacht.

In Florida, anodes need close attention. Saltwater is highly conductive and creates an aggressive environment for underwater metals. Sacrificial anodes are designed to corrode first, helping protect much more expensive components such as shafts, propellers, rudders, thrusters, and other underwater metal.

We don’t wait until an anode disappears completely. A common guideline is to replace sacrificial anodes at around 50% depletion. On yachts that stay in Florida waters year-round, regular underwater inspections are important because the actual rate of anode consumption depends on the vessel, marina, electrical environment, and operating conditions.

For our work, we prefer Zimar anodes. Zimar is a South Florida manufacturer specializing in marine zinc anodes, and we like their approach to quality. Their zinc anodes are hand-poured from 99.995% pure zinc, and the company produces more than 290 different models for yachts and marine equipment.

Yes, a proven product may cost a little more. But on a large, expensive yacht, this is not the place to save a few dollars. The anode is inexpensive compared with the shafts, propellers, thrusters, and other equipment it helps protect.

We provide sacrificial anode replacement, underwater hull cleaning, propeller and running gear cleaning, underwater inspections, video reports, and other commercial diving services throughout Miami and South Florida.

DM us for underwater yacht maintenance.

MiamiYachting

09/03/2026

Installing a thruster protection grate.

One of the stainless-steel bars on this grate had broken off, so the grate was removed for repair. The stainless bar was welded back into place, and we reinstalled the grate underwater. The yacht was ready to continue operating.

We provide underwater services for yachts, boats, recreational vessels, and large commercial vessels:

• Underwater hull cleaning
• Zinc / anode replacement
• Propeller & running gear cleaning
• Thruster service & underwater repairs
• Underwater lighting service
• Underwater inspections & video reports
• Underwater welding & cutting
• Underwater troubleshooting
• Monthly and one-time maintenance

Serving South Florida:

Miami • Miami Beach • Key Biscayne • Virginia Key • Brickell • Downtown Miami • Miami River • North Bay Village • Surfside • Bal Harbour • Haulover • Sunny Isles Beach • Aventura • Hallandale Beach • Hollywood • Dania Beach • Fort Lauderdale

We have the experience and equipment to handle a wide range of work below the waterline.

Need underwater service for your vessel? DM us. We’re available.

09/01/2026

There’s something especially satisfying about working on a large, beautiful, well-maintained yacht. At the same time, it comes with responsibility. You want every part of the job done carefully and properly—and that’s the same approach we bring to every vessel we service.

With regular monthly clients, we get to know their boats underwater. We know what the hull, running gear, propellers, and anodes normally look like, which makes it easier to notice new damage, unusual wear, loose components, or anything else that may need attention.

We provide both one-time service and regular monthly maintenance:

• Underwater hull cleaning
• Propeller & running gear cleaning
• Zinc / anode replacement
• Sea strainer cleaning
• Underwater inspections
• Underwater photo & video reports
• Boat lift cleaning
• Underwater troubleshooting
• Underwater welding & cutting
• Commercial diving services

Serving Miami, Miami Beach, Key Biscayne, Virginia Key, Brickell, Downtown Miami, Miami River, North Bay Village, Surfside, Bal Harbour, Haulover, Sunny Isles Beach, Aventura, Hallandale Beach, Hollywood, Dania Beach & Fort Lauderdale.

We love what we do, know the vessels we maintain, and take pride in keeping them ready for the water.

DM us for one-time service or monthly underwater maintenance.

08/24/2026

Boat lift cleaning — one side is already finished, while the other is still waiting to be cleaned. The difference is easy to see.

A boat lift has many underwater components, and every part needs attention. Marine growth and barnacles build up on the structure, moving parts, bunks, brackets, cables, and other submerged components. Proper cleaning helps keep the entire system in good working condition.

We know how to carefully remove barnacles and other marine growth from boat lifts and underwater structures without unnecessary damage.

Our services:

• Boat lift cleaning
• Underwater hull cleaning
• Propeller & running gear cleaning
• Zinc / anode replacement
• Sea strainer cleaning
• Underwater inspections
• Underwater photo & video reports
• Monthly maintenance
• One-time underwater service
• Commercial diving services

Serving Miami, Miami Beach, Key Biscayne, Virginia Key, Brickell, Downtown Miami, North Bay Village, Surfside, Bal Harbour, Haulover, Sunny Isles Beach, Aventura, Hallandale Beach, Hollywood, Dania Beach & Fort Lauderdale.

Need your boat lift, boat or yacht serviced underwater? DM us.

08/09/2026

Sometimes what feels like a serious propeller problem has a very simple solution.

The owner called after running through a heavy patch of seaweed. Right afterward, they noticed vibration coming from the propeller area. They brought the boat back to the dock at low speed, thinking the prop might have struck something hidden in the weeds.

I went underwater to inspect it—and fortunately, there was no damage. Just a plastic bag wrapped around the propeller. A few seconds to remove it, a quick inspection, and the boat was ready to go again.

We provide:

• Underwater inspections & troubleshooting
• Hull cleaning
• Propeller & running gear cleaning
• Zincs replacement
• Sea strainer cleaning
• Underwater photo & video reports
• Underwater welding & cutting
• Boat recovery & marine salvage

Serving Miami, Fort Lauderdale, Hollywood, Aventura, Sunny Isles, Hallandale, and surrounding South Florida waters.

Need something checked below the waterline? DM us.

Address

8142 Byron Avenue
Miami Beach, FL
33141

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