Need to clean fresh water tank level probes

[Camper634]

The level indicator on my fresh water tank is playing up and I need to clean what I suspect is limescale from the tank.Could anyone please suggest a suitable water additive that will do the job.I cannot physically get to the probes themselves without major engineering so looking firstly for a quick fix.Thank you.

 

[tonyidle]

White vinegar will remove any limescale in the system.

 

[Camper634]

Thanks Tony,that was quick.

 

[Richard n Ann]

They are notoriously unreliable. I removed ours and fitted a float switch.

 

[82125]

I have this issue with the black waste tank. Even hugely diluted I assume it would take an awful lot of white vinegar to do anything?! Especially as youd need to brim the tank to reach all the probes?

Although I suspect only the longest probe is caked up on mine, as sometimes it doesnt read empty (when its been emptied) but it does read correctly as it fills up.

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[NicandJay]

Ive just had mine replaced under warranty by Burstner and the new one is just as inaccurate as the last one.

 

[bertiebasset]

Last time i had a problem i put in about 500gramms of food grade citric acid, then topped up with water and left for a few days. rinsed through a few times. I now have fresh water meter readings and no taste to the fresh water. We DO use it for drinking.
I also puriclean at the beginning of each year too.

Citric Acid | Monohydrated E330 | Food Grade Premium Quality Free UK P&P | eBay

Citric Acid. Citric Acid by Spice Mart. Citric Acid is used to impart a pleasant fruity flavour to your cordials and wines. Simply follow the instructions in your recipe. One rounded teaspoon is equivalent to the juice of one lemon.

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edit. I see no reason why this would not clean the probes in waste tank,, no need to flush