Scale removal
Comments
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Thetford do a cassette tank cleaner that I find works although my cassette has never been too stained. I followed Thetford's advice this summer and turned the cassette upside down so the cleaner worked around the opening flap. It did but the float stuck and needed to be freed.
Some swear by lime scale removing bio tablets they use in the cassette. Apparently, it stops the build up.
Wife uses white vinegar around the house.
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For whatever reason, that old issue of calcium hard deposits in the holding tank and the routine of dissolving them out, disappeared years ago when I moved over to using bio laundry liquid.
I still spray the bowl with our salad vinegar condiment on about a fortnightly basis; it for its intended role contains brown malt vinegar but this has no adverse impact and clears the bowl of the calcium film and that's propensity for staining.
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as with Ocsid, who uses the liquid version, if you try the Lidl/Aldi gel tabs in the cassette in lieu of the usual Thetford-type 'blue', you will have a sparkingly clean cassette after about 5 uses....no need for seperate products or processes.
the limescale build up was one of the an oying things about Thetford blue, it never seemed to keep the cassette clean. however, with the switch to Lidl gel pods a year or so ago, the cassette is as new...
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I use it neat. I buy about 9 small bottles from local Asda. Pour into toilet bowl with trap shut. I refill some of the empty ones with water and place in the bowl to raise level to just below rim. Stand overnight (the vinegar not me) and then open trap to let vinegar into cassette.
I alternatively rotate cassete over a couple of days.
If limescale is very thick it can then be broken off like de-icing a badly frosred freezer.
Using bio tabs seems to reduce the problem greatly
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Using white vinegar at the end of our touring season, in readiness for the following year.
Taken at the end of last year, and now 4 years old.
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