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Drain Master RV & Marine

4.8

About this business

We are the RV Waste Management Specialists. Have a question about dumping your holding tanks? We've got the answer. Drain Master Electric Waste Valves, The Waste Master Sewer Hose Adapter Kit, Hepvo Waterless P-Trap, 360 Roof Vent are just a few of the products that can make dumping your holding tanks simple, safe, sanitary and environmentally friendly. We manufacture and sell direct to save you money. 

Location details

400 Park Center Dr #6, Hollister, CA, 95023, United States

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WeekdayScheduleStatus
Mon7:30 a.m. to 4:30 p.m.
Tue7:30 a.m. to 4:30 p.m.
Wed7:30 a.m. to 4:30 p.m.
Thu7:30 a.m. to 4:30 p.m.
Fri7:30 a.m. to 4:30 p.m.
SatClosed
SunClosed
4.839 reviews
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Robert Gramm's profile image
Robert Gramm 
on Google
a month ago

I have used many different systems (including macerator pumps) over the past 13 years of RVing - the Drain Master RV sewer hose and cam-loc connectors are the best, much better than anticipated. Easy to hook up, quickly (very quickly) drains, easy and clean to unhook, and stores perfectly in the wet bay of my motorhome. The Drain Master customer support absolutely surpasses all other companies I deal with. 

Terry Haynes's profile image
Terry Haynes 
on Google
2 months ago

I have been a Drain Master sewer hose user for 5 years. Immediately after I purchased my fifth wheel I wanted to have the Pro-Series Electric Gate Valves installed on my Black and Grey tanks. But, my RV is very challenging because of the close proximality of the two OEM gate valves (which is why I didn't want to do this job). It took 5 hours for their expert to install and replumb them. They were able to reuse my hand gate valve and the existing Drain Master cam lock. They were extremely agreeable to a few of the requests I ... read more

David Fowler's profile image
David Fowler 
on Google
4 months ago

We added Drain Master electric valves to our 2025 Riverstone 442MC. No more getting on my hands and knees to drain our tanks. Now we can drain all four of our tanks with the push of a button. Mukul from DM Engineering was amazing to work with, met us for dinner and explained in detail how to install the system on our rig. He was available for calls and helped with other products/supplies needed to install the valves….these valves will make your life so much easier 

Chris Smith's profile image
Chris Smith 
on Google
4 months ago

I installed the hose storage on my unit and I could not be happier with it. It will save so much setup hassle and inconvenience now. Thanks for your help in this and check out the pictures. 

Joey Raymond's profile image
Joey Raymond 
on Google
4 months ago

I was incredibly impressed with Drain Master.Their facility is top notch, and it’s great to see a small family business producing such a high quality product. The team was knowledgeable and welcoming, making the whole experience even better. In my opinion, if you don’t have a Drain Master installed in your RV, you’re working way too hard! This system makes waste management effortless. Highly recommend upgrading your setup with their excellent product! 

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Frequently asked questions about Drain Master RV & Marine

How is Drain Master RV & Marine rated?

Drain Master RV & Marine has a 4.8 star rating with 39 reviews. 

When is Drain Master RV & Marine open?

Drain Master RV & Marine is closed now. It will open at 7:30 a.m. 

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