Is a dripping RV shower causing a headache? We’ll show you how to replace the cartridge and skip the drip. PLUS – BONUS TIP: How to Caulk Like a Pro!
While the details of repairing a leaky shower will be a little different for each make and model of plumbing fixture, we’ll show you the general idea of how easy it can be as we replace the control valve in our Delta faucet.
The first step was to identify & order the replacement valve. The owner’s manual for our Delta 1400 Series Monitor listed the replacement part (see below), so it was off to Amazon to place our order. Once it arrived, it was a quick and easy process to remove the old one… and pop in the new. No more dripping!
As a bonus tip, we’ll also show you how to caulk like a professional, even without their skills and practice. If you’ve ever seen a pro do the job, and wondered how they keep their hands totally steady to create those perfectly straight lines of caulk, we’ll show you how to equal or beat their results no matter how lacking your caulk gun skills are!
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Featured & Related Products:
- Delta RP19804 Replacement Cartridge (for Delta 1300/1400 Series Shower Controls… obviously, your replacement part will likely be different!)
- ChannelLock Slip-Joint Pliers
- Valterra Adjustable Water Pressure Regulator
- GE Supreme 100% Silicone Caulk (Clear, 10-Year Mold-Free ????)
- Caulk Gun
- Scotch Painter’s Tape

Your video is just perfect and very detailed. making shower repair less of a hassle especially in small tight areas like rv’s.
Gee, thanks Greg! Glad it was helpful!
You guys are awesome! And I’m going to love using that caulking tip just as soon as I can get the mess scraped off from my last caulking job. Wish I had known last year! ☺️
Aw, thanks Patricia! Sorry we didn’t put this out for you sooner! ????
I was surprised that you didn’t tell people that manufacturers such as Delta, Moen faucets give you replacement parts as long as you own the faucet for free. All you have to do is call them and tell them what model you have or send them a picture of the faucet and they would send you a replacement.
Hi Vic. We didn’t mention that, because we didn’t know that (we’re guessing Delta, Moen, etc aren’t out there promoting that fact too loudly)!! Thanks for the great tip!
Excellent work! Those gloves remind me of my annual proctology appointments – LOL!
Thanks, Tony! And hope the gloves didn’t cause too much anxiety! LOL!
Why didn’t you produce the caulking video last year? You could have saved me a very frustrating experience. When I’m messing with a shower or sink faucet I always use my flat rubber drain stop just in case I drop the little machine screw.
Sorry about that, Roger! If we’d known you were planning to do that project last year, we would have rushed this video out for you! ???? But at least you’ll be prepared for next time! And good tip about closing the sink drain whenever working on the faucet. No one wants to have to fish a part out of the P-trap! YUCK!
As a future reference any time you are working with rubber O-rings put some Silicone grease on them . It will make installing easer and help to make a better seal. Thanks for all the great videos in layman terms.
Thanks for the tip, c.w! We’ve done that in the past, but the instructions for this valve didn’t say to do that (maybe they assumed we’d know?!?!). We’ll keep it in mind for the future!
That was simple. You looked like you were having fun with the caulking…And surprised by the result. Good job.
It’s definitely an easy project, Mike! And if I looked surprised… it was probably because it went off without a hitch WITH the camera running! LOL! ????
Nice tip!
Thanks so much, Stephen!
Good job as always. Looked like your valve seemed easier to replace than ours.
Thanks, Pat! It was a little easier… but hope yours is still working OK!
Yes it is thanks