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Old 04-15-2018, 10:10 PM   #1
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Sealand toilet ball replacement

I replaced the ball seals in my toilet a year ago and now itís not holding water again. Any pointers on replacing the ball. I havenít attempted that yet and havenít found any DIY videos on replacing the ball.
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Old 04-15-2018, 10:16 PM   #2
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Not difficult ; but , very messy , have rubber gloves , a spray bottle with a bleach solution , work in a large pan with a garden hose handy.

Instructions with the ball kit are good , read them carefully before you start.
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Old 04-15-2018, 11:00 PM   #3
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Old 04-15-2018, 11:26 PM   #4
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I had the same problem with my seal shortly after replacing it. To fix it I used an ice stick to clean the under side of the seal, don't get too rough with the seal. To keep the seal clean I open the ball and run a toilet brush through it several time after each trip. As long as I do that the toilet holds water even when not using the MH.
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Old 04-16-2018, 11:24 AM   #5
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I use Thetford toilet seal lube about once a year. Still have original seal in my 02 Dolphin.
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Old 04-16-2018, 11:31 AM   #6
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Rarely do you need to replace the ball ......

Clean the seal.........that is needed more often then not
And that means really clean it
Rub it using your hands with some dish soap.......flex the seal when scrubbing, clean underside making sure no scale/crud is present
Then rinse and using your hands rub it real good with a 'lubricant'......plumbers grease, olive oil etc (no vasoline)

I use olive oil..........toilet seal is OEM from 2006
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Old 04-16-2018, 11:46 AM   #7
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We had a 2004 Sealand, got tired of fighting with it...and worse it was also leaking out the bowl to pedestal seal and wetting the floor. If fact I think it was losing more water that way than the bowl seal. I found some updated seals on eBay, since its actually a design issue. I never did try them. I bought a Dometic 320 and never looked back. The design where it sits on the toilet flange is a real improvement. The poop chute from the toilet is actually lower than the top edge of the toilet flange which means if your toilet seal ages and might not be fully sealing the design doesn't fully rely on the seal to make sure it doesn't leak.

I did have to use the adapter to be able to turn the toilet flange bolts. Better than having a rotted floor from the Sealand.
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Old 04-16-2018, 12:39 PM   #8
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Make sure the shaft to the ball is a metal one. The plastic ones tend to round out the square end and prevents the full closing of the ball.
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Old 04-23-2018, 10:00 AM   #9
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I cleaned the seal without removing it then coated it with vaseline and seems to work without disassembly.
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Old 04-23-2018, 02:04 PM   #10
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I'm with Old-Biscuit on not using Vaseline on rubber or gaskets/seals as it's a petroleum jelly.

Silicone grease or plumbers grease is a better choice and it doesn't wash off as easily.
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Old 04-23-2018, 04:55 PM   #11
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It might not be the ball. They make a "Tool" for cleaning the seals. There shoudl be one in yoru manual bag in fact but you can get one if you like from bigger RV places but I could not find one on line.. Manual (Link below) says "Included with toilet"

here is the link.

Page 5 has cleaning instructions.
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Old 04-23-2018, 05:07 PM   #12
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For parts and "insider" know how..And their prices are in line with others..
"Tucker & Leah" sure helped me (and our toilet was one of the 1st series Sealand 3048 vacuum models...
Have your toilet make, model and serial number handy when ordering..
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Old 05-15-2019, 06:31 AM   #13
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Sealand toilet not holding water

On my Dutchstar I replaced the seals in the Sealand toilet twice. The second time around I replaced the seals and it held water but was leaking onto the carpet. When I took it apart the 2nd time I stopped the leak but it no longer held water. Tired of fooling with it I just lived with it.

When I bought this Southwind the toilet held water for a short while and then started leaking the water into the holding tank. I did a little research and found this improved product on eBay for about half the price:

STOP the Dometic 385311462 from LEAKING with this improved RV toilet seal kit.

Easy install and no leaks. I'm very impressed so far. Appears to be a much better design.
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Old 05-17-2019, 08:23 AM   #14
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Most of the time the problem is calcium build up on the bottom side of the seal. You need a flat tool( plastic is best) with a 45 to 90 degree bend about 1 inch from the end. Turn the water off and open the valve and feel under the seal lip for roughness. Take your tool and gently scape it till its smooth. While its open push down on the seal before closing the valve. I replaced mine twice and then noticed the build up and with this method I have not replaced the seal in five years. The newer ones with the one peace seal has the same problem but it's easyer to remove and clean or replace.
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ace, replace, replacement, seal, toilet

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