What are the opening hours?

Monday 7:30am - 4:30pm Tuesday 7:30am - 4:30pm Wednesday 7:30am - 4:30pm Thursday 7:30am - 4:30pm Friday 7:30am - 4:30pm

Drain Master

Our goal is to make dumping your RV’s holding tanks as simple and sanitary as possible. We are the RV Waste Evacuation Specialists!

Our products eliminate every unpleasant aspect of dealing with your RV's waste.

06/17/2026

Five simple steps. One complete waste management system. 🚐💨

From opening your valve to treating your tank, Drain Master has every part of the process covered:
✔️ Open It — Valves
✔️ Flush It — Hoses
✔️ Store It — Storage Systems
✔️ Vent It — Odor Control
✔️ Treat It — Tank Treatments

No more piecing together products from different brands. Just reliable solutions designed to work together and make RV waste management cleaner, easier, and more convenient from start to finish.

Because the best RV adventures shouldn't be interrupted by tank troubles. 🙌

06/11/2026

🛠️ Keep Your Waste Master System Running Like New

Don’t let a worn hose or seal ruin your next trip. Grab genuine Drain Master Replacement Parts and keep your dumping setup clean, reliable, and leak-free.

From heavy-duty replacement hoses to industrial-grade cam lock fittings, nozzles, seals, and more — we’ve got everything you need to maintain the strongest, safest RV sewer system on the market.

Check it out: https://drainmaster.com/rv/product-category/hose-replacement-parts?utm_source=Facebook

Industrial-grade fittings. Guaranteed leak-free performance. Clear-view sections so you know when it’s clean.
Shop our full selection of Waste Master replacement parts today and stay ready for the road! 💧

06/03/2026

🚐 New Arrival: Drain Master Premium Gate Valve System
Upgrade your RV’s dumping game with the Drain Master 3″ 12V-DC Premium Gate Valve Full Kit — only $307.26

✅ Includes illuminated operator switch + 20 ft. extension cable
✅ Premium 303 Stainless Steel Gearing Made in Switzerland
✅ Smooth, reliable electric operation

Perfect for full control of your black & gray tanks. Need it on a 1.5″ gray water line? Just add the PN 5205 Reducer Kit.
You can even add a second switch for convenience.

Existing Pro-Series owners? We’ve got you covered with replacement parts, extra switches, and cables.💧

05/25/2026

Today we honor the brave heroes who sacrificed everything for our freedom. Thank you. ❤️

Safe travels and God bless our fallen heroes. 💧🚐

05/16/2026

Everyone needs a Waste Master Dump System by Drain Master! 💧

From the tough, flexible 20ft sewer hose that extends smoothly and stays put without fighting you, to the heavy-duty nozzle with built-in shut-off and clear-view window — dumping has never been cleaner or easier.

Pair it with the smart Waste Master Storage System and keep your hose always connected, neatly stowed, and ready to go. No more messy handling, no more rubber gloves, no more hassle. Just clean, sanitary, and stress-free tank dumping every time.

Upgrade your RV life today!

05/06/2026

Let’s be honest… dumping your tanks is the least glamorous part of RV life 😅
That’s where Drain Master comes in.

Our system takes the mess, stress, and guesswork out of the equation—so you can spend less time dealing with the dirty work and more time enjoying the road ahead. Cleaner. Faster. Way easier. 🙌

Because RVing should be about the adventure… not the aftermath. 🚐✨

05/02/2026

✨ Everyone needs a Waste Master Dump System!

Trust Drain Master for fast, clean, and hassle-free waste disposal every single time. Upgrade your setup and never look back! 💧

04/24/2026

Running two outlets on your RV?

The WM 2 Outlet Hose Kit makes it easy to combine both into one line for a cleaner, more efficient dump. Built for flexibility with existing setups and designed to keep things simple.

04/15/2026

Tax refund burning a hole in your pocket? 🔥 Put it to work where it really matters!

Upgrade your RV’s sewer hose to a Waste Master — now backed by a full 5-Year Warranty.
Durable, flexible, and built to handle years of dump station abuse without cracking or leaking. No more cheap hoses failing at the worst possible time.

Use that tax money for an upgrade you’ll actually use every trip.
👉 BUY NOW and make your black & gray tank dumps way less stressful this season!

04/08/2026

From 'ugh, not again' to 'done in seconds' 😎

This Jayco Seneca owner says our electric dump valves are their best upgrade yet.

Who else is ready to retire those old pull cables? 👇

Address

400 Park Center Drive Ste 6
Hollister, CA
95023

Opening Hours

Monday	7:30am - 4:30pm
Tuesday	7:30am - 4:30pm
Wednesday	7:30am - 4:30pm
Thursday	7:30am - 4:30pm
Friday	7:30am - 4:30pm

Telephone

+18316369775

Website

http://www.drainmaster.com/

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