About Us

Marine Sanitation & Supply - 1900 N. Northlake Way - Suite # 121 - Seattle, WA 98103

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Marine Sanitation & Supply opened it's doors in 1976 to provide ethical means for yacht sanitation needs. From working with the local Coast Guard to assist in writing of rules for boaters that made sense from the boaters point of view, to free advice to boaters on "how to" issues, as well as having the convenience of a one stop showroom.

From Toilets, to Holding Tanks, Treatment Systems and Parts - Marine Sanitation & Supply makes sure you are up to date with the latest, most fashionable and economical sanitation options out there. We are a Dometic SeaLand master distributor for VacuFlush and stock distributor of all the sanitation products they make. We provide other brands like MasterFlush, Groco, Thetford, Tecma, Raritan and others. We have parts in stock for most brands of marine toilets, and for those toilets that you may think have seen their days.

Our goal is to help you meet Coast Guard regulations and provide you the knowledge of such products. No one enjoys being stuck in the middle of a trip, vacation and or work day with a busted toilet, and not being up to date on your repair parts or maintenance requirements. The good old Bucket method or jumping in the drink, while it gets the job done, isn't the most flattering way to go about your 'business'.

Marine Sanitation & Supply can provide you with all the necessities to legalize and freshen your outlook on sanitation. And we enjoy what we do.

Our store is located in Seattle WA across the street from Gas Works Park & North Lake Union at
1900 N. Northlake Way, Mariners Square #121
Seattle, WA 98103
Call us at 206-633-1110 or Text 800-624-9111
Fax 206-633-0317

Customer Review:

"I wanted to say that everything about this experience with Marine Sanitation and Supply--the user-friendly design of your website, the ease of payment, the shipping process, the confirmation and tracking processes and your follow-up communications are the best I've seen--a good example for other vendors. Thanks"

Customer Review:

I was the guy who came in yesterday scratching my head about the problems I was having with my head. You took the time to show me how it's all put together and what to be careful of and we discussed a few scenarios of what the problem might be. You sold me 4 Duck valves and a white seal for the piping. I also said I wasn't sure about my skills and you gave me some names to try in case I got in over my head.
I went down to my boat last night and in a very short time had things pulled apart, and repaired. I just wanted to say Thank you and express my gratitude for your time; it paid off and even an inexperienced wrench like myself had it fixed quickly and easily thanks to your instructions. You made my day and I just wanted to let you know and to say Thank You!
I will be back for sure! --John S

Customer Review:

"The customer service at Marine Sanitation & Supply has been outstanding thus far"

Customer Review:

"Thanks again. Customer service does any better than this. :)"

Customer Review:

"Thanks for everything! Can't ask for better service."

Customer Review:

"Thanks Leah,
You are the best. Literally. Thank You!!!"

Customer Review:

"You are the best Sonja !!!
You are the best because you take THE FREAKING TIME TO HELP ME, even without know if there is a business or not in front of you ... I appreciate that from a person ... !!"

Customer Review:

"For the record:

I just want to say that the customer service (Help) that I received from Leah and then Tucker was terrific. They were both knowledgeable and very helpful. They were patient and understanding with me during our couple of phone calls on August 18 and 19. Two awesome people in my book.

Short version: I'm cruising on my boat far from home, in Sitka, Alaska and need help. Our VacuFlush stopped working. Leah and Tucker helped me trouble the system via the telephone. They were patient and provided me great information. They emailed me pdf manuals. However, it was their thoughtful help that helped me fix the VacuFlush"

Customer Review:

"I never would think that the high point of my business trip to Seattle would be at a marine sanitation store, but when we came in with some questions about replacing our boat heads, we got more than we expected. Leah was very knowledgeable about her product, as well as a enthusiastic sales person who asked all the right questions and was able to make informed recommendations we hadn't considered. What can I say, the girl really knows her ****!!!"

Customer Review:

"Leah at Marine Sanitation has been an over the top customer service employee on each and every occasion that we have needed her help this year. Greatly appreciated. -DH"

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