André4Renaults
Enthusiast
- Messages
- 757
- Location
- Barnet, Hertfordshire.
"Kilrok" works better the hotter it is. there are measures in the side of the bottle so if you put a full kettle of boiling water into your matrix then add TWO measures of Kilrok, as one measure treats a half-full kettle. Fit a funnel into the matrix hose, pour in the boiling water (or as close to boiling as you can manage) then add the Kilrok liquid. If there's a calcium build-up Kilrok will dissolve it and it foams up as a result. The effects can be dramatic with a great deal of foam and crud being brought out of the matrix. I once cleared out a water pump on my old Wartburg using Kilrok & it worked much better afterwards!