Marina Installs Unique Floating Bathhouses

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August 26, 2009 by   - () 2 Comments

Editor's Note: This story, provided by  O’Reilly/DePalma, an expert in the building and architectural products field, describes a unique bathhouse installation at a marina in Indiana. The installation could be applicable in certain campgrounds with adjoining marinas.

Bathhouse installation at Hammond, Ind., Marina

Bathhouse installation at Hammond, Ind., Marina

When the Hammond Marina on Lake Michigan opened for the season in May, boaters were greeted with a pair of new dockside conveniences: two floating bathhouses, each with six bathrooms and a laundry room. You wouldn't know it, looking at them nestled into the dock today, but the ADA-compliant, 15-foot x 42-foot facilities were built in a factory more than 400 miles away and trucked to Indiana on an 18-wheeler.

Installing the bathhouses was a much-needed upgrade to the main dock, and customer satisfaction was the project's top priority for the Hammond Port Authority. To help meet that goal, the authority brought in Deborah Nattrass to oversee the complex job. Nattrass is co-owner of Product Link Inc. and Nautical Nature Inc., both of which specialize in marina products in California and the Great Lakes areas.

Through the years, Nattrass has overseen a range of marine projects that involve installing pump-out systems, docks, floating bathrooms and floating houses. For the Hammond Marina, she recognized that top-notch plumbing was key to customer satisfaction, so she opted to use Saniplus macerating toilets from SFA Saniflo Inc. in all 12 bathrooms, reducing the potential for clogging and other plumbing problems that are common in public restrooms.

"This setup is unique," says Hammond Harbormaster Keith Carey. "I'm not sure a conventional toilet would have worked. If not for the macerating pumps, I would foresee a lot of problems."

With more than 1,100 slips accommodating watercraft as large as 80 feet, Hammond's is the second largest publicly owned marina on Lake Michigan. Two thirds of the marina's customers will rely on the new facilities. "On an average weekend, the marina will serve 800 to 1,000 people a day," Carey says.

Added Nattrass, "I've heard of harbormasters saying public baths can be a headache for marina operators, so we try to prevent that. Whenever you do a marina project, it's good to have macerating plumbing, because you don't want any issues with a floating structure. Saniflo makes the bathroom error-proof."

She contracted with Jon Meriwether, owner of Merco Marine of Wellsburg, W. Va., to supply the platform, floats and decking to support the structures at the marina’s dock.

It took nine truckloads to transport the float materials to Hammond. Meriwether’s company supplied the float, platform, metal truss frames and decking. “Each bathhouse weighs 39,000 pounds,” he says. “To support them, we built units 130 feet long and 30 feet wide, with 330,000 pounds of flotation. We designed the float so that it sits slightly below the dock. These are first-class units.”

Meriwether, who lives in a floating house himself, was already familiar with macerating systems. In fact, his company now offers a new floating-restroom product that also features the Saniplus toilet. “I’m using maceration because I don’t want the plumbing to clog up,” he says.

It was Meriwether who researched builders for the project, helping Nattrass settle on Modular One in Pulaski, Tenn. That company system-built the bathhouses on-site and handled their transport to Indiana.

Early on, macerating toilets emerged as a key to the project’s success. “I’ve sold floating structures previously, and Saniflo macerating products have the best name and reputation. They are excellent for marine application,” Nattrass explained. “When you have a boating community with lots of people, you don’t want any plumbing problems. A regular toilet wouldn’t be sufficient in that type of application.”

Nattrass recommended using Saniflo’s Saniplus model, which has a built-in grinder, thus “eliminating anything that’s coming off that structure that could back up the system,” she explains. Using small-diameter discharge piping, the Saniplus can pump effluent 15 feet vertically and 150 feet horizontally.

Even that considerable pumping distance falls well short of Hammond Marina’s unusual plumbing configuration, which requires effluent to be pumped 900 feet from the dock to the sewer. Each Saniplus toilet therefore connects to a floating tank. When the tank is filled, the contents are pumped to a larger lift station, which then pumps it to the sewer.

“The plumbing is kind of a complicated, two-stage setup,” says Carey. “I’m not sure a conventional toilet would have worked. If not for the macerating pumps, I would foresee a lot of problems. The grinders seem to do a very good job of breaking down the paper and other solids to allow them to pass easily through the pumps.”

Carey notes that some of the other pumps in the marina have to be cleaned once a month, adding: “I don’t foresee any maintenance issues like that with the two new macerating systems.”

From Pulaski to Hammond

One of the bathhouses

One of the bathhouses

The bathhouses were fully constructed in Pulaski, with the exception of some exterior finish work done after they were placed onto Meriwether’s floats in the marina. Each bathroom has a toilet, sink and shower, and each bathhouse has two handicapped-accessible bathrooms. A laundry room and a mechanical room round out each facility.

The entire construction project took under three weeks, with Modular One’s plumbers installing the Saniflo systems. General manager Tripp Weigel was not familiar with macerating plumbing prior to the project. “We were a little nervous about macerating plumbing, but it was a fairly easy and simple installation.”

Meriwether recommends installing macerating technology in public restrooms that are heavily used on weekends. “We’ve had a positive experience with macerating toilets,” he says. “There’s a call for these in state parks and private marinas. We sell them all over the country.”

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2 Responses to “Marina Installs Unique Floating Bathhouses”

  1. emergency plumber on May 6th, 2010 2:28 am

    Thank you, this is a very interesting article. I'm looking for quality reading material for emergency plumbing problems and your article certainly meets the description. I hope you continue to issue these articles, I will continue to visit here often

  2. Plumber Miami on October 9th, 2012 7:06 am

    Really interesting, especially since we've never done bathroom at a marina. Done whole hospitals like Baptists Health, But yet to do a floating bathroom (^_^)

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