After emptying the hot water tank on my 1999 Swift Classic, some white lumpy stuff came out as well. It does work ok and have put a new filter on this season. Does it need a strip clean and can i do it? TVM Rick P
It's scale. Easy enough to sort. You need a 50/50 mix of white wine vinegar (must be this type to prevent tainting of the water system with vinegar taste), so total 5 litres of each. Fill the hot water tank as you normally would then leave for at least 6 hours (preferably overnight - DO NOT SWITCH ON!!), drain using the drain point on the tank, & then put a couple of tanks of fresh water through & job done.
This is the method Truma (who also own what was carver) recommend, unless you buy their aquastar stuff, but that's quite expensive in comparison to the method above. It really does work!!