Subject: Re: Waterless Coolant
Hi Steve
Just to add to Mark's wise words, check whether you have a thermostat. If you don't have one you will need to fit one. The thermostat diverts the coolant from the bypass which is at the side of the radiator, and opens the flow to down the honeycomb.
Also check that the water pump impeller is going round. It is riveted to the shaft and I have known for these to dissolve.
You may need to descale the radiator using Fernox DS3 .
Colin M34