If you do not have a pressure washer, you can rent them for a week-end quite reasonably.
You might need a dustbin to act as a reservoir tank, if your water
pressure is not very high.
To do this you would place a hose pipe into the dustbin and allow it to fill up, then place the
feed pipe from the pressure washer into the dustbin.
As you are working, keep an eye on the water level in the dustbin, if you have frequent
rests, then you should not run out.
You will certainly need an old set of clothes or a pair of water-proofs, as cleaning this way
can be quite messy.
A good set of water-proof gloves will come in handy, as will a set of goggles.
When using lances, it is best to use a support belt that helps to take the weight of the lance
and also helps to control the whip when you apply the pressure.
The main things to watch out for are loose pieces of brick and mortar and the overspray of the
So check out the wall prior to cleaning and a swift brush with a hard bristled brush, should
remove any loose material.
Concerning the overspray, you will need to plan which direction you are going to clean from. Try
to clean away from all windows, if that is not possible, you will need to protect the window with
something like hardboard or an old sheet hung over the glass.
Another area to protect is any plants or bushes that might be close to the wall, again an old
sheet carefully draped over the plants will save them from a severe battering.
Try to work towards your drain covers, which will speed up the cleaning up process at the
If your bricks have an ornate facing, it would be best to turn the
pressure right down and take longer to clean the wall, to diminish the risk of damaging the
This pressure washing process should clean most walls, but some might need the help of
Traffic film remover applied 10 minutes before you begin the pressure washing, will
help to loosen any stubborn dirt.