Descaling with Citric Acid (1 Viewer)

Nov 13, 2011
1,492
3,595
Lincolnshire
Funster No
18,889
MH
PVC
Exp
30 years
I know some of you use citric acid to descale your van boilers. So bought a tub of Anhydrous Citric Acid 100% food grade. Before using on the van I experimented on the hob kettle indoors. General opinion appears to be 1 tablespoon per litre. After 24 hours, no noticeable difference, so tried bringing it close to the boil and leaving for a further 24 hours, not much had changed.
Do I drastically up the dilution rate?
Obviously I would not know how effective it would be in the van system, which is why I chose to try it out first, with something I could monitor.
Any suggestions gratefully received.

Geoff
 

Jim

Ringleader
Jul 19, 2007
36,701
132,746
Sutton on Sea, UK
Funster No
1
MH
Adria Panel Van.
Exp
Since 1988
We use it all the time in the home, two or three heaped tablespoons will sort a kettle and shower heads etc.
 
Apr 27, 2008
11,862
14,121
Eastbourne East Sussex
Funster No
2,327
MH
Hymer low profile
Exp
Since 1972
You do need a pretty strong solution. Citric is a very weak acid. I usually bung a 1kg bag in the water tank. Run it through the system to fill the boiler put the water on hot for an hour and then leave it for a day before flushing through. It needs to be thoroughly flushed through otherwise it makes very bad tea.
 
Jun 12, 2017
1,457
3,690
Telford
Funster No
49,010
MH
A class Pilote
Exp
2017
I used it once and ended up with a leaking Ricoh plastic tap, so not for me
 
Apr 28, 2021
78
133
Aberdeen, UK
Funster No
80,763
MH
Compass Drifter 410
Do I drastically up the dilution rate?
You need to drastically reduce the dilution rate - probably around a 5-10% solution to get a decent result.

(you could use half a litre and 25g rather than a whole litre and 50g etc..)

Best to use warm/hot water to dissolve the Citric. I make industrial quantities of it at work and it will take ages to dissolve in cold water.

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OP
OP
donkey
Nov 13, 2011
1,492
3,595
Lincolnshire
Funster No
18,889
MH
PVC
Exp
30 years
Thanks guys. looks as though I need to up the concentration. My concern was that I may be completely wasting my time using it in the van, as I would never know if it had indeed done any good or not.
I did view a Youtube video of a chap descaling his kettle, and he said "As I had not done this for a long time I am going to use a third of a cup measure, but if doing it regularly I would only need a half cup measure"??? Please save us from Youtube idiots :LOL: :LOL: :LOL:

Geoff
 
Apr 28, 2021
78
133
Aberdeen, UK
Funster No
80,763
MH
Compass Drifter 410
There was a post on twitter from an MP yesterday which said one in five of her constituents were already affected by something, and as it was scheduled to double, that would rise to one in 10..... :unsure:
 

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