Practical Caravan - how to replace a Thetford toilet cassette seal

[@gordonstevenson8205]

Great stuff Dan. Nice and simple, clear instructions

[@Sam-ch9mn]

A very useful video, Dan, and well demonstrated. When I discovered my cassette was leaking recently, I followed your instructions carefully and replaced the lip seal successfully. During the job I encountered other bits falling off like the white plastic device at the bottom and the blade developed a mind of its own during reassembly. Eventually though, with the job done, I tested the seal. Water still leaked out. In fact the seal that had failed was the plate seal around the rim of the mechanism. I've ordered a replacement and thanks to your video it will be a quick job to replace that.

[@fulhamboy70]

Thanks to your video I was able to change the seal and replace the blade which was broken. I had no idea you could take the cassettes to pieces so the video has saved me a fair few pounds at a dealer. Many thanks Dave

[@mikephillips7071]

Thank you for your help. Brilliant video very clear instructions.

[@trackpig]

I had been building up to tackle this job. I knew I needed a clear and concise video to help me change the seal on my hard worked, family caravan bog. This video was just the ticket. I look forward to many more years of fault free toilet action. Thanks.

[@Sam-ch9mn]

Just the ticket. My four year old cassette seal has just failed and this video shows I can replace it myself in less than half an hour. Never would have thought that.

[@marwin8768]

Hi Dan,
even if the video is a bit older I have now benefited from it. Very well shown. 👍
Greetings from a German follower and Swift owner.

[@johnengland6153]

Very,
very useful video, just replaced the lip seal on my 2010 model, just a couple of points,(1) the tank cover would not move using your method, so I had to open the blade and grab the sides before it would move in to the unlocked position, (2) due to this I cleaned both the tank seal surround and rubber seal and then sprayed with the lubricating spray before reinserting.

[@Simon_Nonymous]

Well made and useful video. I had to strip my C250 because the circular blade had parted company from its arm - the small plastic spigot holding it in place had sheared. Good news - the plastic reacts well to being superglued, so I have reassembled it glued back together.

[@andyduff2864]

Glad to see you have Dan on board, he produces great videos. Hope we get to see a lot more.

[@alanjackson4646]

Excellent instructive video, (no flannel, no crap music), thanks. AJ

[@practicalcaravan]

Thanks!

[@simonerenierkens]

Thank you Dan for the tips. I could understand them even though my English is not very good. Greetings from Lake Constance. Simone

[@eyelidman09]

Clear, concise and extremely helpful. More videos like this please Mr Trudgian.

[@jano5531]

Thank you, and still very relevant. Once I got the internals off, I also had to take off the 'keeper' which made it easier to resit everything.
Thetford charge like wounded bulls tho for a replacement seal tho.
best tool is an old bent toothbrush to clean everything up.

[@carolinecolbert197]

I needed you to tell me what the name of that part was!!! I've been searching Thetford Holding Tank Gasket and that is NOT IT.HAHA! THank you!!

[@raygrant1751]

Thanks Dan. Video really helped me out and I was able to replace the seal. However, a few other tips which may be of use for other caravan dIYers. My cassette I'm assuming is 8 years old , same as my caravan and therefore the top moulding which holds the seal and mechanisms etc was extremely tight and I was unable to turn it to the open position with the sliding cover. I used a piece of 12 mm wood cut to approx. 8.7cm wide by about 50 cm long, inserted that between the top cover guides and was able to twist the top moulding to the open position. 2nd useful tip, once I disassembled the slider etc. I gave everything a good clean, fitted the new seal and re-assembled the moving mechanisms. However everything was a bit tight and clunky, so I slightly loosened off the screw holding the blade in its pivot soaked everything in olive oil (virgin by the way), worked everything to bed it back in and it started to ease up and eventually worked nice and freely.
Again thanks Dan, you made the whole thing easier.

[@Sam-ch9mn]

Good tip about using a length of wood to lever the mechanism round. It worked for me.

[@raygrant1751]

Glad to be of help.

[@cristelvideo]

This is a really helpful video. My only comment is that the video makes opening the circular top look fairly easy with a strong push. In reality I had to tap the blade used as a lever quite hard with a mallet to get it to open (with a risk that it would break).

[@artoliimatta9177]

Thanks for the nice video, I was able to repair my camper toilet, which suffered from bumpy Latvian roads so that some elements of the slider mover had dropped to the container. Now its back in operation again ;=D.

[@adrianmaura]

Thanks Dan great clear instructions made it v straightforward thanks again

[@Mr-PC]

Hi Dan, I think you mean clockwise at 4:48!
Good video though, very clear explanation.

[@karl-ludwiggrosch76]

Excellent exercise, that helps mew to renew the cassette! Thank you!

[@klgraf]

super easy! Thank you for the detailed instructions! :)

[@Danndmadge]

Thank you very much for this clear and straightforward video just changed my seal no problems..👍

[@davekeepings1878]

Excellent video mate - now I just need to run through your guide which I'm sure will fix my problem.

[@winwinis3483]

Thank you great video.

[@marcleroux370]

super Dan, merci pour cette excellent video👋 et des directives claires et nettes👍

[@victorkent768]

hi dan just watched your non vlog with andrew. bought my 1st caravan last year.new in 2004 I bet this Seal has never been checked so I will add it to my todo list. clock/anti wize 😀

[@TheMcNeillsonWheels]

Hi Dan,
Excellent video. We're having odour leakage problems with our Thetford toilet, so hoping that a new seal will help to allieve these issues!
Thanks again,
Jamie & Stacey

[@sabinesinger2041]

Many Thanks for this Video. It's very helpful for me - Girl 😁 only to open the cassett I need a man.
Very good video. I understand everything you explain. 👍

[@macmerc1556]

Brilliant, just brilliant. Excellent video and a made easy part number find. Thank you very much

[@schernsair]

Great instruction video which helped me a lot!

[@mathiasschulze5194]

Well done. That helped me a lot. Cheers mate

[@greglewis8843]

this video just saved my bacon
on a cl in the peaks
thanks dan

[@mikepointon5482]

Hi. Following your instructions, the circle simply won't budge. Any advice please?

[@WMeier-ks9ju]

Excellent instructive video

[@francodimichino136]

Thks a lot! Very usefull

[@John-hi3xn]

Is replacement of the seal an age related thing ,as car tyres are or do it when you notice that it is hard to operate.

[@jimjam8149]

I found it more interesting to change the seal when the cassette is full

Thanks for the video. :-)
The white part has gone. How can I fix it again and is it important at all?

[@harrycapper69]

Very helpful indeed. However I am worried that as my seal has leaked will the leak remain within the unit, as opposed to ruining my caravan floor.

[@DrJBarnes]

Hi, did you solve the leak on your floor? I have a pink fluid all over my floor and wonder if the seal is the issue?

[@harrycapper69]

@@DrJBarnes I changed the seal and just cleaned every thing up. I made sure that when I was towing that the cassette was empty. Every thing has been fine since.

[@TR5Q3]

Mistake - "refit in an anti-clockwise direction....." It is actually in a clockwise direction!

[@jennimareeh]

What makes you know when the seal needs replacing please?

[@DuBstep115]

Your piss leaks past the seal on the floor that holds the cassette

[@newheat64]

impossible to refit to cassette will not sit properly, and no I'm not stupid I'm an engineer and the rubber seal will not allow refitting did you refit without the main seal in place to make it look easy

[@adriena7516]

Can you put the subtitles? Because I am French, I speak a little English but the subtitles would help me understand

[@neilwhiting9567]

No need to remove screws at At all just loosen screws 4 turns

[@Uppercottage2]

Replacing the mechanism in an 'Anti-Clock-Wise' direction?, sure?......