In message , Andy Wade
writes
On 10/05/2011 15:57, mike wrote:
Is there such a thing as a reasonably constructed footpump with
accurate pressure gauge or is it a case of using the air line at the
garage?
http://www.pclairtechnology.com/Prod...?ProductId=103
Looks OK although they don't offer a price:-)
A thought on gauge accuracy.... pressure in the connecting pipe may be
more than that in the tyre if the Schrader or whatever valve has to be
opened by the applied air pressure. If the connector physically
depresses the valve release, air will flow back to the pump on the
return stroke necessitating a valve at the pump.
Users of forecourt airlines will know to release the air supply to get
an accurate reading.
regards
--
Tim Lamb