Thetford c4 sliding cover, what does it do

number9
number9 Forum Participant Posts: 22
edited June 2016 in Parts & Accessories #1

the cover slid off and disappeared down the drain. I've found spares, but what does it do and is it necessary?

Comments

  • IanH
    IanH Forum Participant Posts: 4,708
    1000 Comments
    edited June 2016 #2

    To be honest, I think it's there just to make the thing look a bit neater. It does seem a bit over the top, because they also have to fit a mechanism for opening it, as well as the flap, when you use the toilet. The cover probably also provides more of an
    air tight seal to prevent odours entering the van (I doubt that the flap is a very good seal).

    However, if you do replace it, I would suggest that you also replace the rubber seal on the cassette. My cover became very loose and was also in danger of falling down the drain every tme I emptied the cassette and replacing the rubber seal solved the problem
    as it increases the friction on the sliding cover.

    The rubber seals are available on Ebay etc and are easy to fit.

  • BRENTRY1896
    BRENTRY1896 Forum Participant Posts: 22
    edited June 2016 #3

    I make it a rule to remove the sliding cover and filler cap before introducing the cassette anywhere near the emptying point, having lost both items down the drain in the past. Some service points have a shelf or similar provided for this, but most don't,
    and I confess to not being entirely happy placing them nearby on the ground, for hygeine reasons.

  • JCB4X4
    JCB4X4 Forum Participant Posts: 466
    100 Comments
    edited June 2016 #4

    I make it a rule to remove the sliding cover and filler cap before introducing the cassette anywhere near the emptying point, having lost both items down the drain in the past. Some service points have a shelf or similar provided for this, but most don't,
    and I confess to not being entirely happy placing them nearby on the ground, for hygeine reasons.

    +1

  • EmilysDad
    EmilysDad Forum Participant Posts: 8,973
    1000 Comments
    edited June 2016 #5

     ..... and I confess to not being entirely happy placing them nearby on the ground, for hygeine reasons.

    Why? Just in case someone decided to have a pinic next to the elsan waste point? I put the cap on the floor as I really don't want to go fishing for it ...... 

  • JCB4X4
    JCB4X4 Forum Participant Posts: 466
    100 Comments
    edited June 2016 #6

     ..... and I confess to not being entirely happy placing them nearby on the ground, for hygeine reasons.

    Why? Just in case someone decided to have a pinic next to the elsan waste point? I put the cap on the floor as I really don't want to go fishing for it ...... 

    No!!!  because somebodies dog usually comes along and wants to b*##%r off with it
    Surprised

    Heaven knows! Undecided  what someone else’s dog has had in its mouth  Worried
    .

  • jennyc
    jennyc Forum Participant Posts: 957
    500 Comments
    edited June 2016 #7

    The rotating flap which provides a watertight seal inside your cassette, is set below the bottom of the conical hard plastic of your toilet bowl which fits against another rubber seal on your cassette. Because of this height difference a pool of flushing
    fluid may drain into the space above the rotating flap. The sliding cover helps to prevent this pool from leaking while the cassette is being carried. The action of sliding the cassette into your van displaces the cover out of the way until you next withdraw
    the cassette. So it's not essential, but it does help to reduce dribbles when the cassette is being carried.

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