23-07-17, 11:38 PM
Not sure if it is absolutely necessary but I used de-ironised water you can also use distilled water instead of tap water.
I live in a really hard water area and kettles fur up badly so my thinking was to go the above route.
I also flushed mine with a hose and ran the bike for about 12 miles (to local town and back) with just fresh tap water in it and drained it out again while still fairly hot, the flush water came out clear.
But to be honest I actually think the original stuff in the cooling system was fine as it was still very pink and no hint of discolouration. The little clear expansion tank at the back was also clean inside.
I refilled the system with pink 5 year concentrated stuff and de-ionised water, that was the winter before last and it's still clear pink.
I live in a really hard water area and kettles fur up badly so my thinking was to go the above route.
I also flushed mine with a hose and ran the bike for about 12 miles (to local town and back) with just fresh tap water in it and drained it out again while still fairly hot, the flush water came out clear.
But to be honest I actually think the original stuff in the cooling system was fine as it was still very pink and no hint of discolouration. The little clear expansion tank at the back was also clean inside.
I refilled the system with pink 5 year concentrated stuff and de-ionised water, that was the winter before last and it's still clear pink.