OK - I looked up the full restrictions - clear enough but not very specific to my situation :
Washing a vehicle/boat/caravan/trailer
(other than by a commercial service provider)
Washing with buckets filled directly from a tap is permitted
at any time.
Flushing of an inboard or outboard motor or any other mechanical
component (to prevent corrosion) is permitted using a hose at any time.
And:
General cleaning of household materials
and equipment
Cleaning of household materials and equipment (e.g. tents, rubbish bins,
barbeques) is not permitted at any time unless using a high-pressure
cleaning unit or other water efficient cleaning methods (e.g. hose fitted
with a trigger nozzle).
So I rang the hotline and asked - all she kept saying was it comes under Washing a vehicle/boat/caravan/trailer and I have to use a bucket unless Flushing of an inboard or outboard motor or any other mechanical
component (to prevent corrosion) when I can use a hose - talk about a stuck record.
So I asked if she could tell me which car washes have facilities to wash engine - no she couldn't as they don't have those records - I have to find that out for myself ?????
Here's the kicker - she then asked "Has this call been helpfull?"
Not really I replied

_________________
David L
My greatest fear in life is that when I die my wife will sell my Mini and tools for the price I told her I paid for them!