In this episode, Eric Stark breaks down the #1 mistake people make when upgrading an RV toilet: assuming the new toilet will connect the same way as the old one. The floor mounting is usually straightforward, but the water supply connection is where most upgrades get hung up—different fittings, different angles, and sometimes a water line that needs to be replaced or adapted. Eric also covers what really matters when choosing a replacement toilet (spoiler: it’s not the brand name). You’ll learn the measurements to check before you buy, including the bolt spacing and the “back-to-wall” clearance that can make certain upgraded models sit too deep or not fit at all. Plus, listeners are invited to share what black tank treatments have worked best for them, and Eric wraps up with a look at new Camco sewer hose fitting upgrades designed to make hookups easier and more reliable. Episode Focus: RV toilet replacement and upgrades — what actually causes problems, and how to avoid them.

What we cover

The #1 RV toilet upgrade mistake:assuming thewater connectionis universal Whybrand usually doesn’t matterfor mounting: most RV toilets bolt down to the flange in a similar wayThe real “gotchas” when swapping toilets: Water supply line fitment(may need a new line, adapter, or reroute)Fitting types and anglesthat change between modelsClearance to the wall(“too deep” problems when upgrading to larger/elongated styles)What to measurebeforeyou order: Base footprint and bolt positionDistance from mounting bolts to the wallWater line location and accessPractical tips fromEric Starkfor a smoother install:
Don’t assume—verify your connection type and space Plan for a water line update even if the toilet swap looks “simple.” Confirm you can still access fittings after the new toilet is in place
Community question:
What black tank treatments work best for you?Let Me Know?
Gear talk/wrap-up:
A look at Camco’s newer sewer hose fittings and why they can make connections faster, cleaner, and more reliable

Resources Mentioned in this Episode:

Here is a link to the 2 RV Accessory Catalogs - 2026 RV Catalogs

Camco Sewer Hose Cool Fittings - Latest Fittings that Swivel and Light Up

PICQUIC RV Screwdriver - RV Driver w/ Bits

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The Smart Rver YouTube Channel - Check Out Our No-Nonsense YouTube Videos

Sunpro Mfg - RV Sunshade, Windshield Covers & Slide Out Awning Fabrics

Hot Boat Ropes - Marine Cordage- Anchor Lines, Dock Lines, Tow Lines, etc.

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Episode 198 – The #1 RV Toilet Upgrade Mistake (And How to Avoid It)