In article <[log in to unmask]>, Bob Harrison
<[log in to unmask]> writes
>The easy way of doing ten to twenty at a time .........etc

A pressure washer, set to the highest temperature, just blasts them
clean in seconds.

We stack them against a fence about half a dozen at a time and just get
the jet onto the grids. It is really quick to do a good satisfactory
job, around 100 an hour, sometimes more. For gleaming perfection it
takes a bit longer.

We have our own pressure washer, but they are not expensive to hire. Be
sure to get a powerful one which can go right up to steam heat, as small
domestic sized steam cleaners are a lot slower.


--
Murray McGregor