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Welcome to Waste Knot! We provide septic pumping services for mobile marine vessels in the Stockton area.

Our team of experts is available 24 hours a day, 7 days a week, 365 days a year to attend to your septic tank and sewage needs. We offer scheduled pumping services to ensure your vessel stays in compliance with environmental regulations.

Our Services

We offer the following services:/ Septic pumping for mobile marine vessels/ Scheduled pumping services/ Sewage disposal/ Tank cleaning/ Tank inspections/ Emergency pumping services/ Environmental compliance consulting/ Waste management solutions

In addition to our core services, we also offer the following products and accessories:/ Septic tank additives/ Pump-out adapters/ Holding tank deodorizers/ Tank level monitors/ Tank treatment chemicals

Licensed and insured Our team is licensed and insured to provide septic pumping services for mobile marine vessels in the Stockton area. We adhere to the highest standards of safety and environmental responsibility.


"Although it seems a bit weird to shift from restaurant reviews on Yelp! to septic pump out....these guys were great. They let us know when they'd be there and took care of pumping out our boat. They were very respectful of property. Excellent service." Barry B.

"Great service. Been using for years for mobile pump out service. Super responsive. Always shows up when they say they will. I've called many times on a Friday evening and they are there Saturday morning taking care of business." Jon R.

"I have used this service a couple of time, I can honestly say he is the best on the Delta, fast, efficient, and on time. Great job thank you so much." Overton H.

Waste Knot Marine Septic Pumping

"Ok so let's talk about a crappy subject - marine black water tank pump outs. When you own an RV or a boat at some point you're going to need to use the toilet. And when you do, eventually you'll need to empty the tank.

On a boat this is a bit more complicated than an RV as it's not quite as easy to start a water yacht up and move her around to a pump out.

That's where these guys come in. They come to YOU! Mobile service. 

We've been using them for a few years now up at Tinsley Island. Much of our club uses them. They are convenient, clean, timely and super courteous. You can call them for one-off pump out or put them in a regular rotation for a discount.

AND, you don't need to be there when they service your tanks. We usually have them on a two week rotation. But sometimes one needs a little extra attention. They've come out several times within hours of my call.

This service is incredibly convenient. The value is superb. They folks who work the phones and the boat are all friendly and accommodating.

Our summers in the delta would not be as pleasurable without Septic Brothers.

Highly recommended!" Mike M.

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